Properties of the Number 25194

Twenty-Five Thousand One Hundred Ninety-Four

Basics

Value: 25193 → 25194 → 25195

Parity: even

Prime: No

Previous Prime: 25189

Next Prime: 25219

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 13 × 17 × 19

Divisors: 1, 2, 3, 6, 13, 17, 19, 26, 34, 38

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110001001101010

Octal: 61152

Duodecimal: 126B6

Hexadecimal: 626a

Square: 634737636

Square Root: 158.72617931519676

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

Fourth convolution of Catalan numbers: a(n) = 4·binomial(2·n+3,n)/(n+4). A2057

Triangle formed from odd-numbered columns of triangle of expansions of powers of·in terms of Chebyshev polynomials U_n(x). Sometimes called Catalan's triangle. A39598

Catalan's triangle with right border removed (n > 0, 0 <= k < n). A30237

Triangle T(n,k) = M(2n,k,-1), with 0 <= k <= n, n >= 0, and array M is defined in A050144. A50166

Coefficients of Chebyshev polynomials. A5583

Triangle of central factorial numbers T(2·n,2·n-2·k), k >= 0, n >= 1 (in Riordan's notation). A8957

Numbers k such that σ(k+1) divides σ(k), where σ(k) is the sum of positive divisors of k. A58073

A diagonal of A036969. A60493

Riordan array (1,(1-2x-sqrt(1-4x))/(2x)). A128899

Sin(n) decreases monotonically to -1. A46964