Properties of the Number 25006

Twenty-Five Thousand Six

Basics

Value: 25005 → 25006 → 25007

Parity: even

Prime: No

Previous Prime: 24989

Next Prime: 25013

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 12503

Divisors: 1, 2, 12503, 25006

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110000110101110

Octal: 60656

Duodecimal: 1257A

Hexadecimal: 61ae

Square: 625300036

Square Root: 158.1328555360966

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

Number of pairwise coprime strict compositions of n, where a singleton is not considered coprime unless it is (1). A337561

Number of partitions of n with equal number of parts congruent to each of 1 and 3 (mod 4). A35544

Number of partitions of 2n with equal number of parts congruent to each of 1 and 3 (mod 4). A35594

Expansion of ∑_k>0 (1/(1 - k·x^k)² - 1). A362683

Expansion of (1-x)/(1-x-2·x³). A52537

A Catalan transform of Pell(n+1). A101850

Triangle T(n,k) read by rows: coefficients of polynomials P_n(t) defined in Formula section. A318110

a(n) = (n⁴-3·n²+4·n+2)/2. A387525

Numbers k such that k and k² use only the digits 0, 2, 3, 5 and 6. A136888

Expansion of e.g.f. 1 / (2 - exp(x) / (1 - x)). A328008