Properties of the Number 25534

Twenty-Five Thousand Five Hundred Thirty-Four

Basics

Value: 25533 → 25534 → 25535

Parity: even

Prime: No

Previous Prime: 25523

Next Prime: 25537

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 2 × 17 × 751

Divisors: 1, 2, 17, 34, 751, 1502, 12767, 25534

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001110111110

Octal: 61676

Duodecimal: 1293A

Hexadecimal: 63be

Square: 651985156

Square Root: 159.7936168937921

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

a(n) is the number of times that sums 3 +- 5 +- 7 +- 11 +- ... +- prime(2n+1) of the first 2n odd primes is zero. There are 2^2n-1 choices for the sign patterns. A83309

Number of solutions to c(1)*prime(2) +...+ c(n)*prime(n+1) = 0, where c(i) = +-1 for i > 1, c(1) = 1. A22897

Number of tatami tilings of a 7 X n grid (with monomers allowed). A192093

Expansion of 1/2 * (((1 + 4·x)/(1 - 4·x))^1/4 - 1). A305608

Number of unlabeled semi-binary rooted trees with n nodes in which the non-leaf branches directly under any given node are all equal. A320271

a(n) = 2·prime(n)² - 4. A153480

a(n) = floor(M(g(n-1)+1,..,g(n))), where M = harmonic mean and g(n) = n*(n + 1)*(n + 2)*(n + 3)/24. A227018

Number of strings of length n in {2,3}* for which at least one of tail(2 S) > tail(S) and tail(3 S) > tail(S) holds. A217437

a(n) = (1/C(n,0) + 1/C(n,1) + ... + 1/C(n,k))*L, where k = [ n/2 ], L = LCM{C(n,0), C(n,1),..., C(n,n)}. A25534