Properties of the Number -25626

Twenty-Five Thousand Six Hundred Twenty-Six

Basics

Value: -25627 → -25626 → -25625

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 4271

Divisors: 1, 2, 3, 6, 4271, 8542, 12813, 25626

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010000011010

Octal: -62032

Duodecimal: -129B6

Hexadecimal: -641a

Square: 656691876

Square Root: 160.08122938058665

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

L.g.f.: log(∏_k>=1 1/(1 - x^k/(1 + x))) = ∑_k>=1 a(k)*x^k/k. A307675

Even pseudoprimes to base 37. A130441

Irregular triangle read by rows: T(n,k) is the number of polyhedra with n faces and k vertices (n >= 4, k=4..2n-4). A212438

53 'Reverse and Add' steps are needed to reach a palindrome. A65320

Number of polyhedra with n nodes and n faces. A2856

Triangle T(n,k) = number of polyhedra (triconnected planar graphs) with n faces and k vertices, where (n/2+2) <= k <= (2n+8). A58787

Triangle T(n,k) = number of polyhedra (triconnected planar graphs) with n edges and k vertices (or k faces), where (n/3+2) <= k <= (2n/3). Note that there is no such k when n=7. A58788

p-INVERT of (0,1,0,1,0,1,...), where p(S) = (1 - S)⁶. A291226

Row sums of triangle A131819. A131820

Number of nX4 0..1 arrays with every element equal to 1, 2 or 4 king-move adjacent elements, with upper left element zero. A297854