Properties of the Number 9140

Nine Thousand One Hundred Forty

Basics

Value: 9139 → 9140 → 9141

Parity: even

Prime: No

Previous Prime: 9137

Next Prime: 9151

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5 × 457

Divisors: 1, 2, 4, 5, 10, 20, 457, 914, 1828, 2285

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10001110110100

Octal: 21664

Duodecimal: 5358

Hexadecimal: 23b4

Square: 83539600

Square Root: 95.60334722173695

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Number of maximal subsets of {1..n} such that it is possible to choose a different prime factor of each element. A370585

Numbers n such that Bernoulli number B_n has denominator 330. A272183

a(n) = n*(n² - 6·n + 11)/6. A50407

Coefficients in expansion of ∑_{n >= 1} xⁿ/(1-xⁿ)⁴. A59358

Numbers k that divide 4^k + 4. A15889

Centered 13-gonal numbers. A69126

Number of distinct values taken by the entropy for permutations of [1..n], where the entropy of a permutation π is ∑_k=1..n (π(k)-k)². A126972

T(n,k) = Number of n X k 0..1 arrays with every element unequal to 0, 1, 2, 4, 5 or 7 king-move adjacent elements, with upper left element zero. A305911

Numbers that are the sum of ten fourth powers in nine or more ways. A345602

a(n) = n³ + 6·n² + 6·n + 1. A90197