Properties of the Number -20124720

Twenty Million One Hundred Twenty-Four Thousand Seven Hundred Twenty

Basics

Value: -20124721 → -20124720 → -20124719

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ⁴ × 3 ³ × 5 × 7 × 11 ³

Divisors: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

9108 Try Today's Challenge

Representations

Binary: -1001100110001010000110000

Octal: -114612060

Duodecimal: -68A6300

Hexadecimal: -1331430

Square: 405004355078400

Square Root: 4486.0584035431375

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) = n! * [xⁿ] ∏_{k=1..n, gcd(n,k) = 1} (1 + x^k/k). A338439

Number of permutations of [n] with distinct cycle lengths whose GCD is 1. A383878