Properties of the Number 31321

Thirty-One Thousand Three Hundred Twenty-One

Basics

Value: 31320 → 31321 → 31322

Parity: odd

Prime: Yes

Previous Prime: 31319

Next Prime: 31327

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 31321

Divisors: 1, 31321

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101001011001

Octal: 75131

Duodecimal: 16161

Hexadecimal: 7a59

Square: 981005041

Square Root: 176.9773996870787

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 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 = [6, 6, 4]; short d-string notation of pattern = [664]. A78858

Primes of form n² + 4096. A256836

Sum of the largest parts of the partitions of n into 9 parts. A326473

Triangle read by rows: T(n,k) is the number of weakly connected acyclic digraphs on n unlabeled nodes with k arcs, n >= 1, k = 0..(n-1)*n/2. A350449

Centered triangular numbers that are prime. A125602

Numbers k such that k, k+1, k+2 and k+3 are 1,2,3,4-almost primes. A113000

Primes of the form k² - 8. A28886

Hyperartiads. A270798

Primes that remain prime through 3 iterations of function f(x) = 3x + 8. A23279

Truncated hex numbers: a(n) = 24·n² + 6·n + 1. A381424