Properties of the Number -81635

Eighty-One Thousand Six Hundred Thirty-Five

Basics

Value: -81636 → -81635 → -81634

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5 × 29 × 563

Divisors: 1, 5, 29, 145, 563, 2815, 16327, 81635

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10011111011100011

Octal: -237343

Duodecimal: -3B2AB

Hexadecimal: -13ee3

Square: 6664273225

Square Root: 285.7183928276232

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) = n*(n+1)*(20·n-17)/6. A172117

Structured triakis octahedral numbers (vertex structure 4). A100171

Let p = n-th prime == 3 mod 8; a(n) = sum of quadratic nonresidues mod p . A282726

Number of (n+2) X (4+2) 0..1 arrays with no 3·3 subblock diagonal sum 0 and no antidiagonal sum 3 and no row sum 1 and no column sum 1. A257443