Properties of the Number 25008

Twenty-Five Thousand Eight

Basics

Value: 25007 → 25008 → 25009

Parity: even

Prime: No

Previous Prime: 24989

Next Prime: 25013

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 ⁴ × 3 × 521

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000110110000

Octal: 60660

Duodecimal: 12580

Hexadecimal: 61b0

Square: 625400064

Square Root: 158.13917920616638

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

Start with 61; to get the next term, divide by the smallest prime factor < 17 if it exists, else multiply by 17 and add 1. A57534

Triangle read by rows: T(n,k) = number of open trails of length k starting and ending at fixed distinct vertices in the complete undirected graph on n labeled vertices, for n >= 1 and k = 0 .. n*(n-1)/2. A357886

G.f. satisfies: A(x) = 1/(1 + x·A(x⁶)) and also the continued fraction: 1+x·A(x⁷) = [1;1/x,1/x⁶,1/x³⁶,1/x²¹⁶,...,1/x^{6^(n-1}),...]. A101916

a(n) = floor(Fibonacci(n)/3). A4696

Number of self-avoiding walks on a tetrahedral (diamond) net, having 2n steps and forming a closed loop. A38515

Maximal length of rook tour on an n X n+3 board. A152134

a(n) is the number of vertices formed by n-secting the angles of an octagon. A335770

Average θ series of odd unimodular lattices in dimension 12. A29751

Fourier coefficients of E_γ,2*E_0,4. A35036

a(n) = 2ⁿ mod n³. A233442