Properties of the Number -107981

One Hundred Seven Thousand Nine Hundred Eighty-One

Basics

Value: -107982 → -107981 → -107980

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 107981

Divisors: 1, 107981

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -11010010111001101

Octal: -322715

Duodecimal: -525A5

Hexadecimal: -1a5cd

Square: 11659896361

Square Root: 328.6046256521658

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

Quadruple Hex-primes: let f(n) = A102489(n); then sequence lists primes p such that f(p), f(f(p)). f(f(f(p))) and f(f(f(f(p)))) are also primes. A237440

Primes for which only three iterations of 'Prime plus its digit sum equals a prime' are possible. A48525