Properties of the Number -100979

One Hundred Thousand Nine Hundred Seventy-Nine

Basics

Value: -100980 → -100979 → -100978

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 241 × 419

Divisors: 1, 241, 419, 100979

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -11000101001110011

Octal: -305163

Duodecimal: -4A52B

Hexadecimal: -18a73

Square: 10196758441

Square Root: 317.77193079313975

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

Sum of the numbers in the trajectory of n for the 3x+1 problem. A33493

a(n) = ∑_{1 <= x₁, x₂, x₃ <= n} gcd(x₁, n)/gcd(x₁, x₂, x₃, n). A373060

Ulam's conjecture (steps to return n to 1 after division by 2 and, if needed, multiplication by 3 with 1 added). A49074

Row sums of A375266. A375268

G.f.: 1/∏_k>=1 (1 - x^2·k²) * (1 - x^k). A385011