Properties of the Number -81045

Eighty-One Thousand Forty-Five

Basics

Value: -81046 → -81045 → -81044

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 × 1801

Divisors: 1, 3, 5, 9, 15, 45, 1801, 5403, 9005, 16209

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10011110010010101

Octal: -236225

Duodecimal: -3AA99

Hexadecimal: -13c95

Square: 6568292025

Square Root: 284.6840353795766

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

Numbers k such that k-4, k-2, k+2 and k+4 are prime. A173037

The Wiener index of the para-polyphenyl chain with n hexagons (see the Dou et al. and the Deng references). A216112