Properties of the Number 25208

Twenty-Five Thousand Two Hundred Eight

Basics

Value: 25207 → 25208 → 25209

Parity: even

Prime: No

Previous Prime: 25189

Next Prime: 25219

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 2 ³ × 23 × 137

Divisors: 1, 2, 4, 8, 23, 46, 92, 137, 184, 274

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001001111000

Octal: 61170

Duodecimal: 12708

Hexadecimal: 6278

Square: 635443264

Square Root: 158.77027429591473

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) = a(n-1) + 3·a(n-2) - a(n-4), with a(0)=1, a(1)=1, a(2)=4, a(3)=7. A124400

Expansion of ∏_k>=1 1/(1-x^k+6)^k. A263362

a(n)=number of Catalan knight paths in right half-plane from (0,0) to (n,2). A96611

Triangle T(n,k) of numbers with e.g.f. exp((exp((1+x)*y)-1)/(1+x)), k=0..n-1. A59340

Number of permutations of [n] with no fixed points where the maximal displacement of an element equals two. A321048

Expansion of (1-x)^-1/(1+2·x-x²-x³). A77920

1-sequence of reduction of hexagonal numbers sequence by x² -> x+1. A192144

Number of partitions in parts not of the form 25k, 25k+3 or 25k-3. Also number of partitions with at most 2 parts of size 1 and differences between parts at distance 11 are greater than 1. A36002

Numbers with at least three digits and with the property that the sum of the cubes of the first and last digit equals the number obtained when the first and last digits are deleted. A275343

a(n) = [ (n-2)nd elementary symmetric function of {log(k)} ], k = 2,3,...,n. A25208