Properties of the Number 25659

Twenty-Five Thousand Six Hundred Fifty-Nine

Basics

Value: 25658 → 25659 → 25660

Parity: odd

Prime: No

Previous Prime: 25657

Next Prime: 25667

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 2851

Divisors: 1, 3, 9, 2851, 8553, 25659

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110010000111011

Octal: 62073

Duodecimal: 12A23

Hexadecimal: 643b

Square: 658384281

Square Root: 160.18426889054993

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

T(n,k)=Number of length n+5 0..k arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250081

Numbers k for which σ(k - x) + σ(k + x) = 8·k has at least one nonnegative solution. A384841

Expansion of g.f. 1/((1 - x)*(1 - 3·x)*(1 - 7·x)*(1 - 8·x)). A21544

Number of length n+5 0..2 arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250075

Number of length 6+5 0..n arrays with every six consecutive terms having the maximum of some two terms equal to the minimum of the remaining four terms. A250087

Number of (n+1)X(3+1) 0..1 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw. A253321

Number of (7+1)X(n+1) 0..1 arrays with every 2X2 subblock sum nondecreasing horizontally, vertically and antidiagonally ne-to-sw. A253332

a(n) is the least number whose product of digits in primorial base equals n. A355036

Numbers k that divide the k-th central Delannoy number. A372901

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of B(x)^k, where B(x) is the g.f. of A381649. A381648