Properties of the Number 61257

Sixty-One Thousand Two Hundred Fifty-Seven

Basics

Value: 61256 → 61257 → 61258

Parity: odd

Prime: No

Previous Prime: 61253

Next Prime: 61261

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 2917

Divisors: 1, 3, 7, 21, 2917, 8751, 20419, 61257

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110111101001001

Octal: 167511

Duodecimal: 2B549

Hexadecimal: ef49

Square: 3752420049

Square Root: 247.50151514687744

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 ternary strings of length n that contain at least two 0's and at most one 1. A338230

Number of partitions satisfying 0 < cn(2,5) + cn(3,5). A39897

Number of (n+3) X 6 binary arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock. A188099

Euler transform of reduced totient function ψ(n), cf. A002322. A61257