Properties of the Number 31318

Thirty-One Thousand Three Hundred Eighteen

Basics

Value: 31317 → 31318 → 31319

Parity: even

Prime: No

Previous Prime: 31307

Next Prime: 31319

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 7 × 2237

Divisors: 1, 2, 7, 14, 2237, 4474, 15659, 31318

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111101001010110

Octal: 75126

Duodecimal: 1615A

Hexadecimal: 7a56

Square: 980817124

Square Root: 176.96892382562538

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 irreducible positions of size n in Montreal solitaire. A7046

Generalized sum of divisors function: third diagonal of A060044. A60045

Indices of primes in sequence defined by A(0) = 41, A(n) = 10·A(n-1) + 11 for n > 0. A101719

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (-1, 1, 1), (0, 1, 0), (1, 0, 0)}. A149934

Number of nX5 binary arrays with every element neighboring horizontally or vertically both a 0 and a 1. A203282

Position of n-th 5 in A031312. A31318