Properties of the Number 25501

Twenty-Five Thousand Five Hundred One

Basics

Value: 25500 → 25501 → 25502

Parity: odd

Prime: No

Previous Prime: 25471

Next Prime: 25523

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 7 × 3643

Divisors: 1, 7, 3643, 25501

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001110011101

Octal: 61635

Duodecimal: 12911

Hexadecimal: 639d

Square: 650301001

Square Root: 159.6903253174719

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

Twice partitioned numbers: the number of ways a number can be partitioned into not necessarily different parts and each part is again so partitioned. A63834

E.g.f.: Limit_N->oo [ ∑_n>=0 (N + n)^2·n * (x/N)ⁿ/n! ]^1/N. A266481

Binomial transform of [1, 100, 100, 100, ...]. A139701

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where column k is the expansion of e.g.f.: exp(∏_j=1..n 1/(1-x^j) - 1). A294212

G.f.: ∑_k>=1 x^2·k-1/(1+x^2·k-1) * ∏_k>=1 1/(1-x^k). A305123

Zero followed by partial sums of A008865. A145067

E.g.f.: exp(1/((1-x)*(1-x²)*(1-x³)) - 1). A294214

Numbers k such that σ(k+1) divides σ(k-1). A227304

Coefficients in the expansion of ([s] + [2s]x + [3s]x² + ...)/([r] + [2r]x + [3r]x² + ...); [ ] = floor, r = sqrt(3), s = sqrt(2). A279629

Number of (n+2) X (4+2) 0..1 arrays with each 3X3 subblock having clockwise perimeter pattern 00000001 00000011 or 00010011. A260763