Properties of the Number 25248

Twenty-Five Thousand Two Hundred Forty-Eight

Basics

Value: 25247 → 25248 → 25249

Parity: even

Prime: No

Previous Prime: 25247

Next Prime: 25253

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ⁵ × 3 × 263

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001010100000

Octal: 61240

Duodecimal: 12740

Hexadecimal: 62a0

Square: 637461504

Square Root: 158.89619252832964

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) = a(n-1) + a(n-9) for n >= 9; a(n) = 1 for n=0..7; a(8) = 2. A5711

Numbers n such that there exists an x≠n that makes {x,x,n} an amicable multiset. A259303

a(n) = ∑_{k=0..floor(n/3)} binomial(3·n-8·k,k). A373640

a(n) = ∑_k=1..n (-1)^k-1 * binomial(floor(n/k)+4,5). A366723

G.f.: ∏_k>0 (1 - x^k)⁴ * (1 - (-x)^k)⁸. A225543

Number of binary vectors of length n having maximal runs-resistance. A319414

Position of second appearance of 2n in the sequence of prime gaps A001223; if 2n does not appear at least twice, a(n) = -1. A356221

Absolute value of Glaisher's α(n). A2290

Number of integer partitions of n whose second differences sum to 0, meaning either there is only one part, or the first two parts have the same difference as the last two parts. A360683

Number of asymmetric (identity) trees with n nodes and 5 leaves. A55336