Infinite+number

  • 91Analytic number theory — In mathematics, analytic number theory is a branch of number theory that uses methods from mathematical analysis to solve number theoretical problems. [Page 7 of Apostol 1976] It is often said to have begun with Dirichlet s introduction of… …

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  • 92Deficient number — In number theory, a deficient number or defective number is a number n for which the sum of divisors σ(n)<2n, or, equivalently, the sum of proper divisors (or aliquot sum) s(n)<n. The value 2n − σ(n) (or n − s(n)) is… …

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  • 93220 (number) — 220 ( two hundred [and] twenty ) is the natural number following 219 and preceding 221.In mathematicsIt is a composite number, with its divisors being 1, 2, 4, 5, 10, 11, 20, 22, 44, 55 and 110, making it an amicable number with 284. [Bryan Bunch …

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  • 94144 (number) — ← 143 145 → 144 ← 140 141 142 143 144 145 146 …

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  • 95Weird number — In mathematics, a weird number is a natural number that is abundant but not semiperfect. [cite journal last =Benkoski first =Stan authorlink = coauthors = title =E2308 (in Problems and Solutions) journal =The American Mathematical Monthly volume …

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  • 96Riesel number — In mathematics, a Riesel number is an odd natural number k for which the integers of the form k ·2 n −1 are composite for all natural numbers n .In other words, when k is a Riesel number, all members of the following set are composite::left{,k… …

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  • 97365 (number) — Previous number: 364 Next number: 366365 is a semiprime centered square number. It is also the fifth 38 gonal number.It is the smallest number which has more than one expression as a sum of consecutive square numbers::365 = 13^2 + 14^2:: = 10^2 + …

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  • 98Square triangular number — A square triangular number (or triangular square number) is a number which is both a triangular number and a perfect square. There are an infinite number of triangular squares, given by the formula: N k = {1 over 32} left( left( 1 + sqrt{2}… …

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  • 99Euclid number — In mathematics, Euclid numbers are integers of the form E n = p n # + 1, where p n # is the primorial of p n which is the n th prime. They are named after the ancient Greek mathematician Euclid.It is sometimes falsely stated that Euclid s… …

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  • 10011 (number) — Number|number = 11 range = 10s cardinal = eleven ordinal = th ordinal text = numeral = undecimal factorization = prime prime = divisor = 1, 11 roman = XI unicode = greek prefix = (from Greek) latin prefix = (from Latin) bin = 1011 oct = 102 duo …

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