Properties of the Number 25988

Twenty-Five Thousand Nine Hundred Eighty-Eight

Basics

Value: 25987 → 25988 → 25989

Parity: even

Prime: No

Previous Prime: 25981

Next Prime: 25997

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 73 × 89

Divisors: 1, 2, 4, 73, 89, 146, 178, 292, 356, 6497

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010110000100

Octal: 62604

Duodecimal: 13058

Hexadecimal: 6584

Square: 675376144

Square Root: 161.20794025109308

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 e.g.f. (2 - e^x)^-2. A5649

Array read by antidiagonals: T(n,k) = number of barred preferential arrangements of k things with n bars (k >=0, n >= 0). A226513

Number of integer partitions of n whose augmented differences are an aperiodic word. A329136

First differences of the Poly-Bernoulli numbers B_n^k with k=-2 (A027649). A53581

Triangular array read by rows: a(n, k) = sum of number of ordered factorizations of all prime signatures with n total prime factors and k distinct prime factors. A95705

Triangular array read by rows: a(n, k) = number of ordered factorizations of a "hook-type" number with n total prime factors and k distinct prime factors. "Hook-type" means that only one prime can have multiplicity > 1. A98348

T(n,k) = ∑_i=0..k (-1)^k-i*binomial(k,i)*A000670(n-k+i). A122101

Column 6 of array in A226513. A226801

Numbers k for which rank of the elliptic curve y²=x³+k·x is 4. A309031

Triangle read by rows where T(n,k) is the number of patterns of length n with k runs. A335461