Properties of the Number 51385

Fifty-One Thousand Three Hundred Eighty-Five

Basics

Value: 51384 → 51385 → 51386

Parity: odd

Prime: No

Previous Prime: 51383

Next Prime: 51407

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 5 × 43 × 239

Divisors: 1, 5, 43, 215, 239, 1195, 10277, 51385

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100100010111001

Octal: 144271

Duodecimal: 258A1

Hexadecimal: c8b9

Square: 2640418225

Square Root: 226.68259747938305

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

Expansion of 1 / ((1-x)²*(1-x²)*(1-x³)*...*(1-x⁶)). A288341

Number of integer partitions of the n-th squarefree number using squarefree numbers. A303365

On a spirally numbered square grid, with labels starting at 1, this is the number of the last cell that an (n,n+1) leaper reaches before getting trapped, or -1 if it never gets trapped. A343179

Sequence is obtained from Catalan numbers (A000108) by taking the factorial of each digit and adding them up. A165163

Portuguese linear measures used in the 18th century. A51385