Properties of the Number 25313

Twenty-Five Thousand Three Hundred Thirteen

Basics

Value: 25312 → 25313 → 25314

Parity: odd

Prime: No

Previous Prime: 25309

Next Prime: 25321

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 17 × 1489

Divisors: 1, 17, 1489, 25313

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 110001011100001

Octal: 61341

Duodecimal: 12795

Hexadecimal: 62e1

Square: 640747969

Square Root: 159.10059710761615

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

Sums of the antidiagonals of the table of k-almost primes (A078840). A78842

Denominator of (1+σ(s)) / ((s+1)/2), where s is the square of n prime-shifted once (s = A003961(n)² = A003961(n²)). A337339

a(n) = ceiling((n+1)⁴/2). A171714

a(n) = ((2·n+1)⁴+1)/2. A175110

Triangle read by rows: T(n,k) is the number of ascent sequences of length n with maximal element k-1. A218577

Compound filter (summands of A004001 & summands of A005185): a(n) = P(A286541(n), A286559(n)), where P(n,k) is sequence A000027 used as a pairing function, with a(1) = a(2) = 0. A286560

a(n) = A048673(n²). A337336

a(n) = 32·n² - 56·n + 25. A272129

Expansion of ∏_{1 <= i < j} (1 + x^i·j). A321286

Numbers k such that the largest prime divisor of k⁴+1 is less than k. A309562

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