Properties of the Number 56181

Fifty-Six Thousand One Hundred Eighty-One

Basics

Value: 56180 → 56181 → 56182

Parity: odd

Prime: No

Previous Prime: 56179

Next Prime: 56197

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 61 × 307

Divisors: 1, 3, 61, 183, 307, 921, 18727, 56181

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101101101110101

Octal: 155565

Duodecimal: 28619

Hexadecimal: db75

Square: 3156304761

Square Root: 237.02531510368254

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) = a(n-1) + a(n-2) + a(n-3), with a(0) = 1, a(1) = a(2) = 5. A214827

Square array read by falling antidiagonals, where A(n,k) = σ(A337470(n, k)). A337472

Square array A(n, k) = σ((2n-1)²) * σ((2k-1)²), read by antidiagonals. A379220

Sum of a(n) terms of 1/k^5/6 first exceeds n. A56181