Properties of the Number 57920

Fifty-Seven Thousand Nine Hundred Twenty

Basics

Value: 57919 → 57920 → 57921

Parity: even

Prime: No

Previous Prime: 57917

Next Prime: 57923

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ⁶ × 5 × 181

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1110001001000000

Octal: 161100

Duodecimal: 29628

Hexadecimal: e240

Square: 3354726400

Square Root: 240.66574330386118

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) = coefficient of xⁿ in A(x) such that: 0 = ∑_n=-oo..+oo x^4·n * (xⁿ - 2·A(x))^5·n+1. A358954

Number of L-connected free polyominoes with n cells (see comments for definition). A360055

a(n) = ∑_{i=1..floor((n-1)/2)} i * (n-i)². A308038

Number of nXnXn 0..6 triangular arrays with each element·equal to the number its neighbors equal to 3,3,2,1,1,0,0 for x=0,1,2,3,4,5,6. A198089

Numbers k such that φ(k+1) divides φ(k), where φ is A000010. A57920