Properties of the Number 57220

Fifty-Seven Thousand Two Hundred Twenty

Basics

Value: 57219 → 57220 → 57221

Parity: even

Prime: No

Previous Prime: 57203

Next Prime: 57221

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 2861

Divisors: 1, 2, 4, 5, 10, 20, 2861, 5722, 11444, 14305

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1101111110000100

Octal: 157604

Duodecimal: 29144

Hexadecimal: df84

Square: 3274128400

Square Root: 239.20702330826325

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 parts > 1 in the last section of the set of partitions of n. A138135

Coefficients in the expansion of C³/B⁴, in Watson's notation of page 106. A160463

Number of parts in all partitions of 2n+1 that do not contain 1 as a part. A182735

Numbers that cannot be expressed as a sum of 2 triangular numbers and a power of 2. A112665

Number of (n+1) X (5+1) 0..1 arrays with every 2 X 2 subblock antidiagonal maximum minus diagonal minimum nondecreasing horizontally and diagonal maximum minus antidiagonal minimum nondecreasing vertically. A253394

Numbers k such that 2^k - 23 is prime. A57220