Properties of the Number -100643

One Hundred Thousand Six Hundred Forty-Three

Basics

Value: -100644 → -100643 → -100642

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 19 × 5297

Divisors: 1, 19, 5297, 100643

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -11000100100100011

Octal: -304443

Duodecimal: -4A2AB

Hexadecimal: -18923

Square: 10129013449

Square Root: 317.2428092171673

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 version of F. K. Hwang's sequence in {3·k, 3·k+1, 3·k+2}. A123945

a(3n) = floor(43·2ⁿ/28) - 1, a(3n+1) = a(3n) + 3·2^n-3, a(3n+2) = floor(17·2ⁿ/7 - 6/7) for n>=3. A123946

First index k where A366574(k) = n. A366724