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Figurate number
A pyramidal number is the number of points in a pyramid with a polygonal base and triangular sides. The term often refers to square pyramidal numbers
Pyramidal_number
Number of stacked spheres in a pyramid
In mathematics, a pyramid number, or square pyramidal number, is a natural number that counts the stacked spheres in a pyramid with a square base. The
Square_pyramidal_number
Polyhedral number representing a tetrahedron
A tetrahedral number, or triangular pyramidal number, is a figurate number that represents a pyramid with a triangular base and three sides, called a tetrahedron
Tetrahedral_number
Natural number
square pyramidal number 11480 = tetrahedral number 11520 = highly totient number 11549 = highly cototient number 11550 = sparsely totient number 11574
10,000
Natural number
divisor number, smallest 4-perfect number 30323 = Sophie Germain prime and safe prime 30420 = pentagonal pyramidal number 30537 = Riordan number 30694 =
30,000
Pyramid with a square base
polytope called cubic pyramid. Square pyramidal number is a natural number that counts the number of spheres stacked into a square pyramid. Many mathematicians
Square_pyramid
Hardness test
given by the test is known as the Vickers pyramid number (HV) or diamond pyramid hardness (DPH). The hardness number can be converted into units of pascals
Vickers_hardness_test
Natural number, composite number
octangula number, where two self-dual tetrahedra are represented through figurate numbers, while also being the first non-trivial square pyramidal number (after
14_(number)
Natural number
seven integers, which makes it a square pyramidal number. 140 is an odious number because it has an odd number of ones in its binary representation. The
140_(number)
Natural number
numbers 20230 = pentagonal pyramidal number 20412 = Leyland number: 93 + 39 20540 = square pyramidal number 20569 = tetranacci number 20593 = unique prime in
20,000
Natural number
square pyramidal number 40585 = largest factorion 40678 = pentagonal pyramidal number 40755 = the smallest number >1 to be a Triangular number, Pentagonal
40,000
Natural number
natural number following 203 and preceding 205. 204 is a refactorable number. 204 is a square pyramidal number: 204 balls may be stacked in a pyramid whose
204_(number)
Natural number
therefore a pentagonal pyramidal number, as well as a nonagonal number. It is also the fourth ordered Bell number, and a Keith number, because it recurs in
75_(number)
Natural number
to also be a centered hexagonal number. a centered nonagonal number. a centered cube number. a square pyramidal number, being the sum of the squares of
91_(number)
Natural number
triangular number. 2160 = 24 × 33 × 5. It is a largely composite number. 2176 = 27 × 17. It is a pentagonal pyramidal number and a centered pentagonal number. 2179
2000_(number)
Natural number
number following 160 and preceding 162. 161 is the sum of five consecutive prime numbers: 23, 29, 31, 37, and 41. 161 is a hexagonal pyramidal number
161_(number)
Natural number
30 (thirty) is the natural number following 29 and preceding 31. 30 is a composite, a regular number, a pronic number, and a primorial. The SI prefix for
30_(number)
Square pyramidal number Pentagonal pyramidal number Hexagonal pyramidal number Heptagonal pyramidal number Octahedral number Star number Perfect number Quasiperfect
List of recreational number theory topics
List_of_recreational_number_theory_topics
Natural number
5525 – square pyramidal number 5527 – happy prime 5536 – tetranacci number 5557 – super-prime 5563 – balanced prime 5564 – amicable number with 5020 5565
5000_(number)
Natural number
number following 284 and preceding 286. 285 is an odd composite number. 285 is the 9th square pyramidal number. That means it is the sum of a number of
285_(number)
Natural number
square pyramidal number. 1241 = 17 × 73. It is a centered cube number and a spy number. 1243 = 11 × 113. It is a composite de Polignac number. 1244 =
1000_(number)
Mathematical problem of square numbers which are also square-pyramidal
triangular and square pyramidal)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Weisstein, Eric W. "Square Pyramidal Number". MathWorld. Weisstein
Cannonball_problem
Natural number
(fifty-five) is the natural number following 54 and preceding 56. 55 is composite number, a Fibonacci number and a Triangular number. In the United States,
55_(number)
Natural number
harmonic divisor number 6201 – square pyramidal number 6216 – triangular number 6217 – super-prime 6229 – super-prime 6232 – amicable number with 6368 6241
6000_(number)
Natural number
number 7193 – Sophie Germain prime, super-prime 7200 – pentagonal pyramidal number 7211 – Sophie Germain prime 7225 = 852, centered octagonal number 7230
7000_(number)
Natural number
powers. 52488 = 3-smooth number 52633 = Carmichael number 53016 = pentagonal pyramidal number 53174 = number of partitions of 42 53361 = 2312 sum of the cubes
50,000
Natural number
highly cototient number 4290 – pronic number 4320 – largely composite number 4324 – 23rd square pyramidal number 4325 – centered square number 4339 – super-prime
4000_(number)
Natural number
octahedral number; 8119/5741 ≈ √2 8125 – pentagonal pyramidal number 8128 – perfect number, harmonic divisor number, 127th triangular number, 64th hexagonal
8000_(number)
Natural number
of seven rectangular stamps. 115 is also a heptagonal pyramidal number. The 115th Woodall number, 115 ⋅ 2 115 − 1 = 4 776 913 109 852 041 418 248 056 622
115_(number)
Natural number
partitions of 7. 308 = 22 × 7 × 11. It is a nontotient, a heptagonal pyramidal number, and the sum of two consecutive primes (151 + 157). It is the totient
300_(number)
Natural number
(1^{3}+2^{3})(1^{3}+3^{3})=252.} a practical number, a refactorable number, a hexagonal pyramidal number. a member of the Mian-Chowla sequence. There
252_(number)
Projection neurons in the cerebral cortex and hippocampus
Pyramidal cells, or pyramidal neurons, are a type of multipolar neuron found in areas of the brain including the cerebral cortex, the hippocampus, and
Pyramidal_cell
Natural number
sphenic number, a Lucas–Carmichael number, and a Harshad number. 936 = 23 × 32 × 13. It is a pentagonal pyramidal number and a Harshad number. 937 is
900_(number)
Natural number
pentagonal pyramidal number. 727 is a prime number, a palindromic prime, and a lucky prime. 728 = 23 × 7 × 13. It is a nontotient, a Smith number, and a cabtaxi
700_(number)
Ancient masonry structures in Egypt
Egypt's most northerly pyramid (other than the ruins of Lepsius pyramid number one),[citation needed] the mostly ruined Pyramid of Djedefre, son and successor
Egyptian_pyramids
Natural number
number 9077 – Markov number 9091 – unique prime 9103 – super-prime 9126 – pentagonal pyramidal number 9139 – tetrahedral number 9175 – smallest (provable)
9000_(number)
Natural number
number and an Achilles number. 649 = 11 × 59. It is a Blum integer. 650 = 2 × 52 × 13. It is a primitive abundant number, a square pyramidal number,
600_(number)
Natural number
the only such Granville number. 126 is a pentagonal pyramidal number and a decagonal number. 126 is also the different number of ways to partition a decagon
126_(number)
Natural number
sphenic number, a square pyramidal number, a pronic number, a Harshad number. 10 506 − 10 253 − 1 {\displaystyle 10^{506}-10^{253}-1} is a prime number. Its
500_(number)
Natural number
figurate numbers in multiple ways. It is a pentagonal pyramidal number and a dodecagonal number. Additionally, it is the index, in the sequence of triangular
288_(number)
Natural number
10-gonal pyramidal numbers)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Wikimedia Commons has media related to 175 (number). v t e
175_(number)
Natural number
strobogrammatic number 819 = 32 × 7 × 13. It is a square pyramidal number. 820 = 22 × 5 × 41. It is a Harshad number, a happy number, a repdigit (1111)
800_(number)
Natural number
properties. It is also a truncated square pyramid number. Wikimedia Commons has media related to 190 (number). 190 (disambiguation) Sloane, N. J. A. (ed
190_(number)
Structure shaped as a geometric pyramid
structures of Igbo culture was the Nsude pyramids, in the Nigerian town of Nsude, northern Igboland. Ten pyramidal structures were built of clay/mud. The
Pyramid
Natural number
360 = inches in a mile 63,600 = number of free 12-ominoes 63,750 = pentagonal pyramidal number 63,973 = Carmichael number 64,000 = 403 64,009 = sum of the
60,000
Largest pyramid in the Giza Necropolis, Egypt
The Great Pyramid of Giza is the largest of the Egyptian pyramids and the most famous landmark of the Giza pyramid complex in Giza, Egypt. It is the oldest
Great_Pyramid_of_Giza
Number of close-packed spheres in an octahedron
original faces (or alternatively, based on the fact that each square pyramidal number is the sum of two tetrahedral numbers): O n = T n + 2 T n − 1 + T n
Octahedral_number
Series of interconnected leagues
by tier; the numbered ones may be referred to as "Division N" or "Nth Division": The English football league system consists of a pyramid of leagues, bound
English football league system
English_football_league_system
Type of unsustainable business model
consumers or by generating genuine investment returns. Pyramid schemes depend on an ever-growing number of recruits, making them inherently unsustainable.
Pyramid_scheme
Index of articles associated with the same name
integers. For the sum of squares of consecutive integers, see Square pyramidal number Pythagorean triples are sets of three integers such that the sum of
Sum_of_squares
Archaeological complex located in Cholula, Puebla, Mexico
perpetuate the memory of the male warrior. It has two levels. One is a pyramidal platform and the other is a talud-tablero structure with a double cornice
Great_Pyramid_of_Cholula
Archaeological site near Cairo, Egypt
The Giza pyramid complex (also called the Giza necropolis) in Egypt is home to the Great Pyramid, the pyramid of Khafre, and the pyramid of Menkaure,
Giza_pyramid_complex
Angular, sharply pointed mountainous peak
A pyramidal peak, sometimes called a glacial horn in extreme cases, is an angular, sharply pointed mountain peak which results from cirque erosion caused
Pyramidal_peak
Natural number
pentagonal pyramidal number 72771 = 3 x 127 x 191, is a sphenic number, triangular number, and hexagonal number. 73296 = is the smallest number n, for which
70,000
Archeological site in Egypt
the step pyramid with its substructure. The complex was a landmark achievement for Egyptian architecture. It was the advent of the pyramidal form of the
Pyramid_of_Djoser
Glass-and-metal pyramid in the main courtyard of the Louvre Palace
cited this number twice. The number 666 was also mentioned in various newspapers. One writer on esoteric architecture asserted that "the pyramid is dedicated
Louvre_Pyramid
Diagram of optimal servings of basic foods
A food pyramid is a representation of the optimal number of servings to be eaten each day from each of the basic food groups. The first pyramid was published
Food_pyramid_(nutrition)
Pseudoarchaeology in Bosnia and Herzegovina
nature produces pyramidal shapes and suggested that the main formation seen today may have been a natural hill shaped into a pyramid by human efforts
Bosnian_pyramid_claims
Skyscraper in San Francisco
commissioned by Transamerica CEO John (Jack) R. Beckett, who chose an unusual pyramidal shape because he wished to allow light in the street below. Construction
Transamerica_Pyramid
Graphical representation of biomass or biomass productivity
pyramid of numbers representing the number of individual organisms at each trophic level. Pyramids of energy are normally upright, but other pyramids
Ecological_pyramid
Architectural structure that uses flat platforms or steps to form geometric pyramid
structures of Igboland was the Nsude Pyramids, at the Nigerian town of Nsude, northern Igboland. Ten pyramidal structures were built of clay/mud. The
Step_pyramid
Pyramid structure in Mexico
The Pyramid of the Sun is the largest building in Teotihuacan, and one of the largest in Mesoamerica. It is believed to have been constructed about 200
Pyramid_of_the_Sun
Topics referred to by the same term
Vickers pyramid number (HV), a rating of the Vickers hardness test Vietnam People's Navy, a part of the Vietnam People's Army Virtual page number, stored
VPN_(disambiguation)
Natural number
× 13. It is also a lucky number, a truncated triangular pyramid number, and an idoneal number. There are 273 different ternary trees with five nodes.
273_(number)
Shape of certain five-ligand chemical complexes
1021/ic50093a006. "Square Pyramidal Molecular Geometry. VSEPR". Archived from the original on 2009-11-02. "Square Pyramidal Geometry". Miessler, G. L
Square pyramidal molecular geometry
Square_pyramidal_molecular_geometry
Pyramid structure in Mexico
The Pyramid of the Moon is the second-largest pyramid in Teotihuacan, after the Pyramid of the Sun, and located in modern-day San Martín de las Pirámides
Pyramid_of_the_Moon
analysis to suggest the Great Pyramid was completed from start to finish in approximately 10 years. Their study estimates the number of blocks used in construction
Construction of the Egyptian pyramids
Construction_of_the_Egyptian_pyramids
Village in Beni Suef Governorate, Egypt
appearance, the pyramid is called el-heram el-kaddaab (false pyramid) in Egyptian Arabic. The pyramid was erected in three phases, numbered E1, E2 and E3
Meidum
Configuration of atoms within a molecule
molecule belongs to point group C3v. Some molecules and ions with trigonal pyramidal geometry are the pnictogen hydrides (XH3), xenon trioxide (XeO3), the
Trigonal pyramidal molecular geometry
Trigonal_pyramidal_molecular_geometry
Used to count, measure, and label
A number is a mathematical object used to count, measure, order and label. The most basic examples are the natural numbers: 1, 2, 3, 4, 5, and so forth
Number
first kind Stirling numbers of the second kind Triangular number Triangular pyramidal number The (incomplete) Bell polynomials from a triangular array
List_of_triangle_topics
Type of proof technique
binomial coefficients that can be proven by double counting. Square pyramidal number. The equality between the sum of the first n {\displaystyle n} square
Double counting (proof technique)
Double_counting_(proof_technique)
Pyramids in Sudan
The Pyramids of Meroë are a large number of Nubian pyramids, encompassing three cemeteries near the ancient city of Meroë. They are located in Sudan,
Pyramids_of_Meroë
Dutch business intelligence software company
Pyramid Analytics is a business intelligence software company that was founded in 2009 by Omri Kohl, Avi Perez, and Herbert Ochtman. The company has offices
Pyramid_Analytics
Numbers obtained by adding the two previous ones
month, the number of pairs of rabbits is equal to the number of mature pairs (that is, the number of pairs in month n – 2) plus the number of pairs alive
Fibonacci_sequence
Pyramids built by ancient Kushite kingdoms in present-day northern Sudan
number of pyramids which had been found "in good conditions" by Frédéric Cailliaud just a few years earlier. At Wad ban Naqa, he leveled the pyramid N6
Nubian_pyramids
Graphical illustration showing distribution of age groups in a population
the continuation of a species. Number of people per unit area of land is called population density. A population pyramid often contains continuous stacked-histogram
Population_pyramid
Number equal to the sum of its proper divisors
In number theory, a perfect number is a positive integer that is equal to the sum of its positive proper divisors, that is, divisors excluding the number
Perfect_number
Number used for counting
natural-number results: subtracting a larger natural number from a smaller one results in a negative number and dividing one natural number by another
Natural_number
Model for predicting molecular geometry
only, which is trigonal-pyramidal for NH3. Steric numbers of 7 or greater are possible, but are less common. The steric number of 7 occurs in iodine heptafluoride
VSEPR_theory
Addition of several numbers or other values
{n^{2}}{2}}+{\frac {n}{6}}\qquad } (Sum of the first squares, see square pyramidal number.) ∑ i = 0 n i 3 = ( ∑ i = 0 n i ) 2 = ( n ( n + 1 ) 2 ) 2 = n 4 4 +
Summation
Number divisible only by 1 and itself
A prime number (or a prime) is a natural number greater than 1 that is not a product of two smaller natural numbers. A natural number greater than 1 that
Prime_number
Figurate number
The triangular lattice representing the n {\displaystyle n} th triangular number contains n {\displaystyle n} rows: the first row contains one point, the
Triangular_number
Product of an integer with itself
+n^{2}={\frac {n(n+1)(2n+1)}{6}}.} The first values of these sums, the square pyramidal numbers, are: (sequence A000330 in the OEIS) 0, 1, 5, 14, 30, 55, 91,
Square_number
Form of pocket billiards popular in Eastern Europe
The total number of points is 130. 14.1 pyramid (also known as straight pyramid or long pyramid) The rules are very similar to free pyramid, except that
Russian_pyramid
Central nervous system pathways
impression of an inverted pyramid. Involvement of the pyramidal tract at any level leads to pyramidal signs. The myelination of the pyramidal fibres is incomplete
Pyramidal_tracts
2001 single by Radiohead
"Pyramid Song" is a song by the English rock band Radiohead, released as the lead single from their fifth studio album, Amnesiac (2001), in May 2001.
Pyramid_Song
Species of flowering plant
commonly known as pyramidal bugle, is a flowering plant of the genus Ajuga in the family Lamiaceae. It is a native plant in Europe. Pyramidal bugle is a perennial
Ajuga_pyramidalis
Napoleonic monument in the Netherlands
injured. The Pyramid is a national monument, monument number 39543. Wikimedia Commons has media related to Pyramid of Austerlitz. "The Pyramid of Austerlitz"
Pyramid_of_Austerlitz
Endocrine gland in the neck
left side and occasionally separated. The pyramidal lobe is also known as Lalouette's pyramid. The pyramidal lobe is a remnant of the thyroglossal duct
Thyroid
American game show
Pyramid is an American game show franchise that has aired several versions domestically and internationally. The show was developed by Bob Stewart. The
Pyramid_(game_show)
Ancient Nubian temple
which the Temple of Dakka is based. King Adikhalamani is buried in pyramid number 9 in Meroe, in Sudan. Later, during the reigns of Ptolemy VI, Ptolemy
Temple_of_Debod
Type of magic square
Bimagic series totals for bimagic squares are also linked to the square-pyramidal number sequence is as follows :- Squares 0, 1, 4, 9, 16, 25, 36, 49, ....
Multimagic_square
Commercial building in Greater Manchester, England
on the number of pyramids that were originally planned; some state two further pyramids would be built, while others state four more pyramids were planned
Stockport_Pyramid
Iterative algorithm on numbers
In number theory, Kaprekar's routine is an iterative algorithm named after its inventor, Indian mathematician D. R. Kaprekar. Each iteration starts with
Kaprekar's_routine
Integer having a non-trivial divisor
A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Accordingly, it is a positive integer that has
Composite_number
Whole number
0 (zero, /ˈziː.roʊ/) is a number representing an empty quantity. Adding (or subtracting) 0 to any number leaves that number unchanged; in mathematical
0
Theory of industrial accident prevention
This idea proposes that if the number of minor accidents is reduced then there will be a corresponding fall in the number of serious accidents. The triangle
Accident_triangle
Shape with four equal sides and angles
n + 1 ) ( 2 n + 1 ) / 6 {\displaystyle n(n+1)(2n+1)/6} , a square pyramidal number. For n = 1 , 2 , 3 , … {\displaystyle n=1,2,3,\dots } these numbers
Square
Palestinian footballer
League club Pyramids and the Palestine national team. In January 2018, Hamdan moved to Al Assiouty Sport, which was later rebranded as Pyramids. In January
Hamed_Hamdan
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