Properties of the Number 81161

Eighty-One Thousand One Hundred Sixty-One

Basics

Value: 81160 → 81161 → 81162

Parity: odd

Prime: No

Previous Prime: 81157

Next Prime: 81163

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 277 × 293

Divisors: 1, 277, 293, 81161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011110100001001

Octal: 236411

Duodecimal: 3AB75

Hexadecimal: 13d09

Square: 6587107921

Square Root: 284.8876971720611

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

Sequence of pairwise relatively prime numbers of class P₆ (see comment in A275246). A275251

Numbers z such that x² + y⁶ = z² (with positive integers·and y) and gcd(x, y, z) = 1. A293691

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (0, 1, 1), (1, -1, 0), (1, 0, 0)}. A150023

Number of even cycles in range [A014137(2n)..A014138(2n)] of permutation A057505/A057506, with two fixed-points of A057164. A81161