Properties of the Number 49920

Forty-Nine Thousand Nine Hundred Twenty

Basics

Value: 49919 → 49920 → 49921

Parity: even

Prime: No

Previous Prime: 49919

Next Prime: 49921

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ⁸ × 3 × 5 × 13

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 13

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1100001100000000

Octal: 141400

Duodecimal: 24A80

Hexadecimal: c300

Square: 2492006400

Square Root: 223.42784070030305

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) = 2*(a(n-1) + a(n-2)), a(0) = 0, a(1) = 1. A2605

Jordan function J₄(n). A59377

Number of distinct non-subset-sums of integer partitions of n. A365918

Sum of the divisors of 5ⁿ-1. A366613

Saint-Exupéry numbers: ordered products of the three sides of Pythagorean triangles. A57096

Jordan function J_-4 multiplied by n⁴. A189922

a(n) = σ(σ(...(σ(n))...)) / n, where σ (A000203) is iterated until a multiple of n is reached. A19295

Numbers expressible as (a²-1)(b²-1) in at least 2 distinct ways (b>=a>1). A63067

a(n) = [xⁿ] 1/η(x)^4ⁿ. A158104

Expansion of e.g.f. (1/x) * Series_Reversion( x * (1 - x·exp(2·x)) ). A379690