Properties of the Number 31491

Thirty-One Thousand Four Hundred Ninety-One

Basics

Value: 31490 → 31491 → 31492

Parity: odd

Prime: No

Previous Prime: 31489

Next Prime: 31511

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 3499

Divisors: 1, 3, 9, 3499, 10497, 31491

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101100000011

Octal: 75403

Duodecimal: 16283

Hexadecimal: 7b03

Square: 991683081

Square Root: 177.457037054043

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 nonary sequences of length n such that no two consecutive terms have distance 3. A287818

Squared length of sum of e_lambda e_lambda', where e_lambda is an elementary symmetric function and λ ranges over all partitions of n and λ' is the adjoint (or transpose) of λ. A332302

Numbers whose base-8 representation has 2 fewer 0's than 7's. A31491