Properties of the Number 5639

Five Thousand Six Hundred Thirty-Nine

Basics

Value: 5638 → 5639 → 5640

Parity: odd

Prime: Yes

Previous Prime: 5623

Next Prime: 5641

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 5639

Divisors: 1, 5639

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 1011000000111

Octal: 13007

Duodecimal: 331B

Hexadecimal: 1607

Square: 31798321

Square Root: 75.09327533141699

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

Initial members of prime septuplets (p, p+2, p+8, p+12, p+14, p+18, p+20). A22010

Safe primes which are also Sophie Germain primes. A59455

Initial members of prime septuplets. A257124

Primes p such that p+2 and 2p+1 are also prime. A45536

Smaller member of a twin prime pair whose mean is a multiple of A002110(3)=30. A60229

Initial term in sequence of four consecutive primes separated by 3 consecutive differences each <=6 (i.e., when d=2,4 or 6) and forming d-pattern=[2,6,4]; short d-string notation of pattern = [264]. A78848

Numbers k such that 1 + ∑_i=1..k 2^2·i-1 is prime. A127936

Primes p such that p+2 and p+8 are also primes but p+6 is not. A49437

Primes p such that (p-1)/2 and (p-3)/4 are also prime. A66179

T(n,k)=Number of length n+1 0..k arrays with the sum of the cubes of adjacent differences multiplied by some arrangement of +-1 equal to zero. A250229