Properties of the Number 25940

Twenty-Five Thousand Nine Hundred Forty

Basics

Value: 25939 → 25940 → 25941

Parity: even

Prime: No

Previous Prime: 25939

Next Prime: 25943

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 5 × 1297

Divisors: 1, 2, 4, 5, 10, 20, 1297, 2594, 5188, 6485

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010101010100

Octal: 62524

Duodecimal: 13018

Hexadecimal: 6554

Square: 672883600

Square Root: 161.05899540230592

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

Fixed-j dispersion for Q = 13: array D(g,h) (g, h >= 1), read by ascending antidiagonals. A120862

Expansion of (1-x-x²)/(1-3x-x²). A52991

a(n) is the number of edges formed by n-secting the angles of a decagon. A335802

a(n) = 3·a(n-2) + a(n-4), a(0)=a(1)=0, a(2)=1, a(3)=2. A305889

G.f. A(x) satisfies: [xⁿ] A(x)ⁿ⁺¹ = [xⁿ] (1 + x·A(x)ⁿ⁺³)ⁿ⁺¹ for n >= 0. A360235

Number of tilings of an n X 9 rectangle using integer-sided rectangular tiles of area n. A220134

Expansion of 1/((1-2x)(1-3x)(1-6x)(1-10x)). A25940