Properties of the Number 51231

Fifty-One Thousand Two Hundred Thirty-One

Basics

Value: 51230 → 51231 → 51232

Parity: odd

Prime: No

Previous Prime: 51229

Next Prime: 51239

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 17077

Divisors: 1, 3, 17077, 51231

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100000011111

Octal: 144037

Duodecimal: 25793

Hexadecimal: c81f

Square: 2624615361

Square Root: 226.34266058346137

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 p of n such that mean(p) > multiplicity(max(p)). A240202

Expansion of 1/((1-x)*(1-5·x)*(1-8·x)*(1-9·x)). A22469

Triangle read by rows: T(n, m) = S1(n, m)*9^n-m, where S1 are the signed Stirling numbers of first kind A008275 (n >= 1, 1 <= m <= n). A51231