Properties of the Number -57581

Fifty-Seven Thousand Five Hundred Eighty-One

Basics

Value: -57582 → -57581 → -57580

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 71 × 811

Divisors: 1, 71, 811, 57581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -1110000011101101

Octal: -160355

Duodecimal: -293A5

Hexadecimal: -e0ed

Square: 3315571561

Square Root: 239.96041340187762

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(0)=1; thereafter, a(m+1) = ∑_k=0..m k!*a(m-k). A51295

Table T(n,k), n>=1 and k>=0, read by antidiagonals, related to A111146. A113326

T(n,k) is the number of permutations of [n] having exactly k pairs of integers i<j in [n] such that their cycle minima have opposite sorting order; triangle T(n,k), n>=0, 0<=k<=A125811(n)-1, read by rows. A381529

A084938·A000012. A134379