Properties of the Number 56180

Fifty-Six Thousand One Hundred Eighty

Basics

Value: 56179 → 56180 → 56181

Parity: even

Prime: No

Previous Prime: 56179

Next Prime: 56197

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 53 ²

Divisors: 1, 2, 4, 5, 10, 20, 53, 106, 212, 265

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101101110100

Octal: 155564

Duodecimal: 28618

Hexadecimal: db74

Square: 3156192400

Square Root: 237.0232056149777

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

Sum of the squarefree parts of the partitions of n into 10 parts. A309486

a(n) = 2·a(n-1) - [(n+1)/3] for n>0 with a(0) = 1. A136169

Number of (n+1)X(n+1) 0..1 arrays with no 2X2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements. A251121

Number of tilings of a 5 X n rectangle using n pentominoes of shapes P, X, Y. A343529

Sum of a(n) terms of 1/k^4/5 first exceeds n. A56180