Properties of the Number 25529

Twenty-Five Thousand Five Hundred Twenty-Nine

Basics

Value: 25528 → 25529 → 25530

Parity: odd

Prime: No

Previous Prime: 25523

Next Prime: 25537

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 7 ² × 521

Divisors: 1, 7, 49, 521, 3647, 25529

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 110001110111001

Octal: 61671

Duodecimal: 12935

Hexadecimal: 63b9

Square: 651729841

Square Root: 159.7779709471866

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 nXk 0..1 arrays with each 1 adjacent to 0 or 2 king-move neighboring 1s. A295781

Numbers with 3 or more prime factors (with multiplicity) such that every concatenation of their prime factors is prime. A217264

Number of sets of nonempty words with a total of n letters over n-ary alphabet such that if a letter occurs in the set all predecessors occur at least once. A319518

Numbers k such that k, k+2, k+4 are of the form p²*q where p and q are distinct primes. A308735

Number of irreducible representations of the symmetric group S_n such that their degree is divisible by 3. A61569

Numbers n such that the sum of the heptagonal numbers H(n), H(n+1) and H(n+2) is equal to the sum of three consecutive squares. A251769

Number of nX4 0..1 arrays with each 1 adjacent to 0 or 2 king-move neighboring 1s. A295777

Number of nX6 0..1 arrays with each 1 adjacent to 0 or 2 king-move neighboring 1s. A295779

a(n) = (1/1 + 1/2 + ... + 1/n)*lcm{1,2,...,n}. A25529

Number of n X 6 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero. A304131