Properties of the Number 51569

Fifty-One Thousand Five Hundred Sixty-Nine

Basics

Value: 51568 → 51569 → 51570

Parity: odd

Prime: No

Previous Prime: 51563

Next Prime: 51577

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 7 × 53 × 139

Divisors: 1, 7, 53, 139, 371, 973, 7367, 51569

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100101110001

Octal: 144561

Duodecimal: 25A15

Hexadecimal: c971

Square: 2659361761

Square Root: 227.08808863522543

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

First differences of A047780. A100790

Consider the problem of placing N = A051756(n) queens on an n X n board so that each queen attacks precisely 3 others; a(n) gives the number of inequivalent solutions. A51569