Properties of the Number 25081

Twenty-Five Thousand Eighty-One

Basics

Value: 25080 → 25081 → 25082

Parity: odd

Prime: No

Previous Prime: 25073

Next Prime: 25087

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 3583

Divisors: 1, 7, 3583, 25081

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000111111001

Octal: 60771

Duodecimal: 12621

Hexadecimal: 61f9

Square: 629056561

Square Root: 158.36982035728903

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

Expansion of g.f. A(x,y) satisfying y/x = ∑_n=-oo..+oo x^n*(3·n+1/2) * (A(x,y)^3·n - 1/A(x,y)^3·n+1), as a triangle read by rows. A361050

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 205", based on the 5-celled von Neumann neighborhood. A286696

4-dimensional centered tetrahedral numbers. A8498

Least k such that A072084(k) = n. A72087

floor[2ⁿ/Fibonacci(n)]. A57861

McKay-Thompson series of class 14c for Monster. A58507

a(n) = a(n-1) + a(n-2) + 5 where a(0) = a(1) = 1. A111721

a(n) = floor(n*(n+2)*(n+4)*(n-6)/192). A117652

Number of irredundant sets in the complete tripartite graph K_n,n,n. A290709

The number of length 2n - 1 strings over the alphabet {0, 1} such that the first half of any initial odd length substring is a permutation of the second half. A297789