Properties of the Number 81127

Eighty-One Thousand One Hundred Twenty-Seven

Basics

Value: 81126 → 81127 → 81128

Parity: odd

Prime: No

Previous Prime: 81119

Next Prime: 81131

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 31 × 2617

Divisors: 1, 31, 2617, 81127

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110011100111

Octal: 236347

Duodecimal: 3AB47

Hexadecimal: 13ce7

Square: 6581590129

Square Root: 284.8280182847186

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 bipartite planar graphs with 2n nodes and exactly one zero eigenvector. A133237

Expansion of e.g.f. (1/x) * Series_Reversion( x * (exp(-x) - x³) ). A392998

11th binomial transform of (0,1,0,0,0,0,0,...). A81127