Properties of the Number 57126

Fifty-Seven Thousand One Hundred Twenty-Six

Basics

Value: 57125 → 57126 → 57127

Parity: even

Prime: No

Previous Prime: 57119

Next Prime: 57131

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 9521

Divisors: 1, 2, 3, 6, 9521, 19042, 28563, 57126

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1101111100100110

Octal: 157446

Duodecimal: 29086

Hexadecimal: df26

Square: 3263379876

Square Root: 239.01046002215048

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

Number of non-equivalent ways to choose 4 points in an equilateral triangle grid of side n. A231653

For n >= 1, a(n) = A159666(n)/n. A159667

E.g.f. A(x) satisfies A(x) = 1 + 3 * (1 - exp(-x)) * A(1 - exp(-x)). A355094

Numbers k such that 2 is a square mod k. A57126