Properties of the Number 66451

Sixty-Six Thousand Four Hundred Fifty-One

Basics

Value: 66450 → 66451 → 66452

Parity: odd

Prime: No

Previous Prime: 66449

Next Prime: 66457

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 7 × 11 × 863

Divisors: 1, 7, 11, 77, 863, 6041, 9493, 66451

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10000001110010011

Octal: 201623

Duodecimal: 32557

Hexadecimal: 10393

Square: 4415735401

Square Root: 257.7809147318707

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 median(p) < mean(p). A240217

Expansion of 1/((1-3·x)*(1-9·x)*(1-11·x)). A18091

Sum of diagonal elements and those below it for a square matrix of integers, starting with 1. A66804

a(n) is the number of integers k > 0 such that (n·k+1)/(k²+1) is an integer. A66451