Properties of the Number 51845

Fifty-One Thousand Eight Hundred Forty-Five

Basics

Value: 51844 → 51845 → 51846

Parity: odd

Prime: No

Previous Prime: 51839

Next Prime: 51853

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 10369

Divisors: 1, 5, 10369, 51845

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 1100101010000101

Octal: 145205

Duodecimal: 26005

Hexadecimal: ca85

Square: 2687904025

Square Root: 227.69497139814047

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

Non-palindromic numbers n such that φ(n) = φ(reversal(n)). A97647

Partial sums of A033617. A299903

Number of active (ON, black) cells at stage 2ⁿ-1 of the two-dimensional cellular automaton defined by "Rule 557", based on the 5-celled von Neumann neighborhood. A272925

Triangle T(n,k) read by rows, in which row n gives all permutations of digits 1..n interpreted in base n+1. A51845