Properties of the Number 5281

Five Thousand Two Hundred Eighty-One

Basics

Value: 5280 → 5281 → 5282

Parity: odd

Prime: Yes

Previous Prime: 5279

Next Prime: 5297

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5281

Divisors: 1, 5281

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1010010100001

Octal: 12241

Duodecimal: 3081

Hexadecimal: 14a1

Square: 27888961

Square Root: 72.67048919609665

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: Yes

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k such that (5^k - 3^k)/2 = A005059(k) is prime. A121877

Centered 10-gonal numbers. A62786

T(n, k) = ∑_j=k..n binomial(n, j)*E1(j, j-k), where E1 are the Eulerian numbers A173018. Triangle read by rows, T(n, k) for 0 <= k <= n. A46802

Artiads: the primes p == 1 (mod 5) for which Fibonacci((p-1)/5) is divisible by p. A1583

Numbers k such that k⁴ can be written as a sum of four positive 4th powers. A3294

Primes of the form 5k² + 5k + 1. A90562

Triangle T(n,k) read by rows: T(n,k) is the number of length-n ascent sequences with exactly k descents. A238858

Primes of the form 32·n + 1. A133870

Concentric 22-gonal numbers. A195149

Expansion of x²/((1-3·x)*(1-2·x)²). A66810