Properties of the Number -100781

One Hundred Thousand Seven Hundred Eighty-One

Basics

Value: -100782 → -100781 → -100780

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 31 × 3251

Divisors: 1, 31, 3251, 100781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11000100110101101

Octal: -304655

Duodecimal: -4A3A5

Hexadecimal: -189ad

Square: 10156809961

Square Root: 317.4602337301477

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) is the smallest error in trying to solve n⁵ = x⁵ + y⁵: for each n from 2 on, find positive integers·and y, x <= y < n such that |n⁵ - x⁵ - y⁵| is minimal and let a(n) = n⁵ - x⁵ - y⁵. In case of a tie, choose the solution with smallest y. A369855

Number of aperiodic necklaces (Lyndon words) with k<=6 black beads and n-k white beads. A277631