Properties of the Number -57040

Fifty-Seven Thousand Forty

Basics

Value: -57041 → -57040 → -57039

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 5 × 23 × 31

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 23, 31

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -1101111011010000

Octal: -157320

Duodecimal: -29014

Hexadecimal: -ded0

Square: 3253561600

Square Root: 238.83048381645088

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

Consider a number x > 1. Take the sum of its digits. Repeat the process deleting the first addendum and adding the previous sum. The sequence lists the numbers that after some iterations reach the Euler totient function of x. A269310

a(n) = n*(n+1)*(2·n+1)*(3·n+1)/6. A11195

Number of (n+1) X 2 binary arrays with every 2 X 2 subblock trace equal to some horizontal or vertical neighbor 2 X 2 subblock trace. A185742

Numbers k such that 405·2^k+1 is prime. A323102