Properties of the Number -81990

Eighty-One Thousand Nine Hundred Ninety

Basics

Value: -81991 → -81990 → -81989

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 5 × 911

Divisors: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Duodecimal: -3B546

Hexadecimal: -14046

Square: 6722360100

Square Root: 286.3389599757602

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

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