Properties of the Number 57640

Fifty-Seven Thousand Six Hundred Forty

Basics

Value: 57639 → 57640 → 57641

Parity: even

Prime: No

Previous Prime: 57637

Next Prime: 57641

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 2 ³ × 5 × 11 × 131

Divisors: 1, 2, 4, 5, 8, 10, 11, 20, 22, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110000100101000

Octal: 160450

Duodecimal: 29434

Hexadecimal: e128

Square: 3322369600

Square Root: 240.08331887076204

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

a(n) = 144n² + 2n. A158132

a(n) = 1600·n² + 40. A158775

Triangular array counting derangements by number of descents. A219836

Expansion of sqrt(1-8x)/sqrt(1-4x). A104497

a(n) = floor(H(n) + exp(H(n))*log(H(n))), where H(n) = ∑_k=1..n 1/k. A57640