Properties of the Number 25930

Twenty-Five Thousand Nine Hundred Thirty

Basics

Value: 25929 → 25930 → 25931

Parity: even

Prime: No

Previous Prime: 25919

Next Prime: 25931

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 5 × 2593

Divisors: 1, 2, 5, 10, 2593, 5186, 12965, 25930

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110010101001010

Octal: 62512

Duodecimal: 1300A

Hexadecimal: 654a

Square: 672364900

Square Root: 161.02794788483146

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

Numbers n such that φ(n)=φ(n+5), with Euler's totient function φ=A000010. A179187

Triangle, read by rows, where row n equals the coefficients of y^k in R_n-1(y+y²) for k=1..n where R_n(y) is the n-th row polynomial in y for n>1 with R₁(y)=y. A187005

Number of (w,x,y) with all terms in {0,...,n} and w ≠ min(|w-x|, |x-y|). A213499

Numbers k such that the continued fraction for sqrt(k) has period 71. A20410

Numbers that contain as proper substrings every maximal prime power dividing them. A59401

Numbers such that the digital sums in bases 3, 4, 5 and 6 all are equal. A135126

G.f. A(x) satisfies: [xⁿ⁺¹] A(Fⁿ(x)) = 0 for n>0 where Fⁿ(x) denotes the n-th iteration of F(x) = x+x² with F⁰(x)=x. A187009

Solution to the Dancing School Problem with 8 girls and n+8 boys: f(8,n). A79913

Expansion of 1/((1-2x)(1-3x)(1-5x)(1-6x)). A25930