Properties of the Number 57216

Fifty-Seven Thousand Two Hundred Sixteen

Basics

Value: 57215 → 57216 → 57217

Parity: even

Prime: No

Previous Prime: 57203

Next Prime: 57221

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁷ × 3 × 149

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111110000000

Octal: 157600

Duodecimal: 29140

Hexadecimal: df80

Square: 3273670656

Square Root: 239.19866220361686

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

On a spirally numbered square grid, with labels starting at 0, this is the number of the last cell that a (1,n) leaper reaches before getting trapped, or -1 if it never gets trapped. A323472

The Gi1 and Gi2 sums of Losanitsch's triangle A034851. A192928

[ exp(7/20)*n! ]. A30857

To get next term, multiply by 17, add 1 and discard any prime factors < 17. A57216