Properties of the Number 31745

Thirty-One Thousand Seven Hundred Forty-Five

Basics

Value: 31744 → 31745 → 31746

Parity: odd

Prime: No

Previous Prime: 31741

Next Prime: 31751

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 5 × 7 × 907

Divisors: 1, 5, 7, 35, 907, 4535, 6349, 31745

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 111110000000001

Octal: 76001

Duodecimal: 16455

Hexadecimal: 7c01

Square: 1007745025

Square Root: 178.17126592130393

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

a(n) = 8ⁿ - 4ⁿ + 1. A155629

Number of maximal antichains of nonempty subsets of {1..n}. A326359

a(n) = n³ - n² + 1. A100104

Number of partitions of n such that (least part) < (multiplicity of greatest part). A240178

a(n) = 31·2ⁿ + 1. A206371

Where records appear in A109734. A109740

a(n) = 31·n² + 1. A247155

Number of n X 6 0..1 arrays with every element unequal to 0, 1, 2, 6 or 7 king-move adjacent elements, with upper left element zero. A305038

Consider the family of simple graphs. Sequence gives the triangle read by rows giving coefficients of polynomials arising from enumeration of those graphs on n edges. A98234

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (0, -1, 1), (1, 0, -1), (1, 1, -1), (1, 1, 1)}. A149780