Properties of the Number 81264

Eighty-One Thousand Two Hundred Sixty-Four

Basics

Value: 81263 → 81264 → 81265

Parity: even

Prime: No

Previous Prime: 81239

Next Prime: 81281

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 1693

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10011110101110000

Octal: 236560

Duodecimal: 3B040

Hexadecimal: 13d70

Square: 6603837696

Square Root: 285.06841284154933

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 minimum total dominating sets in the n-Keller graph. A323489

Number of ways to tile a "central bump" strip of length n with 1 X 1 squares and 1 X 3 rectangles. A385933

Odd Fibonacci pseudoprimes: odd composite numbers k such that either (1) k divides Fibonacci(k-1) if k == +-1 (mod 5) or (2) k divides Fibonacci(k+1) if k == +-2 (mod 5). A81264