Properties of the Number 51138

Fifty-One Thousand One Hundred Thirty-Eight

Basics

Value: 51137 → 51138 → 51139

Parity: even

Prime: No

Previous Prime: 51137

Next Prime: 51151

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ³ × 947

Divisors: 1, 2, 3, 6, 9, 18, 27, 54, 947, 1894

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100011111000010

Octal: 143702

Duodecimal: 25716

Hexadecimal: c7c2

Square: 2615095044

Square Root: 226.13712654051304

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 ways to place 2 nonattacking knights on an n X n cylindrical board. A172964

Number of regions in a polygon whose boundary consists of n+2 equally spaced points around a semicircle and three equally spaced points along the diameter (a total of n+3 points). See Comments for precise definition. A333642

Divisibility sequence associated with elliptic curve y² + y = x³ - x and point (1, 0). A51138