Properties of the Number 51685

Fifty-One Thousand Six Hundred Eighty-Five

Basics

Value: 51684 → 51685 → 51686

Parity: odd

Prime: No

Previous Prime: 51683

Next Prime: 51691

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 5 × 10337

Divisors: 1, 5, 10337, 51685

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 1100100111100101

Octal: 144745

Duodecimal: 25AB1

Hexadecimal: c9e5

Square: 2671339225

Square Root: 227.343352662883

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 partitions of [n] into blocks whose element sum is <= n. A375099

The inverse Euler transform of p(n) = n if n is prime, otherwise 1. A358452

Auxiliary sequence for calculation of number of even permutations of degree n and order exactly 4. A51685