Properties of the Number 57691

Fifty-Seven Thousand Six Hundred Ninety-One

Basics

Value: 57690 → 57691 → 57692

Parity: odd

Prime: No

Previous Prime: 57689

Next Prime: 57697

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 31 × 1861

Divisors: 1, 31, 1861, 57691

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110000101011011

Octal: 160533

Duodecimal: 29477

Hexadecimal: e15b

Square: 3328251481

Square Root: 240.18950851359017

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) = n*(2·n² - 2·n + 1). A59722

a(n) = (prime(n)⁴ - 1) / 240. A89034

Fibonacci sequence beginning 11, 7. A206419

Numbers k such that 10^k + 4·R_k + 3 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A102934

Number of terms before entering cycle in trajectory of P under the 'Px+1' map, where P = n-th prime, or -1 if trajectory does not cycle. A57691