Properties of the Number 25880

Twenty-Five Thousand Eight Hundred Eighty

Basics

Value: 25879 → 25880 → 25881

Parity: even

Prime: No

Previous Prime: 25873

Next Prime: 25889

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ³ × 5 × 647

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 647, 1294

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110010100011000

Octal: 62430

Duodecimal: 12B88

Hexadecimal: 6518

Square: 669774400

Square Root: 160.87262041752163

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 (χ(q) / χ³(q³))² in powers of q where χ() is a Ramanujan θ function. A164614

Number of partitions of n such that the number of parts having multiplicity >1 is a part and the number of distinct parts is not a part. A241411

Number of partitions p = [x(1), ..., x(k)], where x(1) >= x(2) >= ... >= x(k), of n such that max(x(i) - x(i-1)) <= number of parts of p. A241829

Expansion of η(q⁴) * η(q²⁸) / (η(q) * η(q⁷)) in powers of q. A123648

Antidiagonal sums of the convolution array A213833. A213834

Number of 2·n X 6 binary arrays with row sums 3 and column sums n, avoiding the patterns 010 and 101 in any row and column. A381553

Values of·in solutions (x,y,z) to the Diophantine equation x³-x²+y³-y²=z³-z², with 1<x<y<z. A138667

Indices of primes in A266891. A304210

Numbers k such that 189·2^k-1 is prime. A50846

Partial sums of A120769. A120770