Properties of the Number 25104

Twenty-Five Thousand One Hundred Four

Basics

Value: 25103 → 25104 → 25105

Parity: even

Prime: No

Previous Prime: 25097

Next Prime: 25111

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 ⁴ × 3 × 523

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: 110001000010000

Octal: 61020

Duodecimal: 12640

Hexadecimal: 6210

Square: 630210816

Square Root: 158.44241856270688

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 set-systems covering n vertices, every two of which appear together in some edge (cointersecting). A327040

a(n) = exp(-1/2) * ∑_k>=0 (2·k - 1)ⁿ / (2^k * k!). A337038

The number of permutations of {(n+1) 1's, (n+1) 2's, ..., (n+1) n's} with the property that k's are equally spaced for k=1..n and the interval of k+1 is less than or equal to the interval of k for k=1..n-1. A332783

Number of parts in all partitions of n with largest multiplicity ten. A320380

a(n) = ∑_{k=0..floor(n/3)} (k+1) * binomial(2·k,2·n-6·k). A382496

Numbers n such that f(n), f(n+1) and f(n+2) are prime, f(m)=72·m²+7. A121089

G.f.: x*(1+x+x²)*(1+6·x+8·x²+4·x³-x⁴)/((1+x)²*(1-x)⁴). A147691

Number of set partitions C'_t(n) of {1,2,...,t} into at most n parts, with an even number of elements in each part distinguished by marks and such that no part contains both 1 and t (each unmarked) or both i and i+1 (each unmarked) for some i with 1 <= i < t; triangle C'_t(n), t>=0, 0<=n<=t, read by rows. A261319

Row sums of A298824. A298825

Square array read by upwards antidiagonals: T(n,k) = ∑_i=1..n A191898(i,k). A309229