Properties of the Number 31319

Thirty-One Thousand Three Hundred Nineteen

Basics

Value: 31318 → 31319 → 31320

Parity: odd

Prime: Yes

Previous Prime: 31307

Next Prime: 31321

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 31319

Divisors: 1, 31319

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101001010111

Octal: 75127

Duodecimal: 1615B

Hexadecimal: 7a57

Square: 980879761

Square Root: 176.97174915788113

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

Euclid-Mullin sequence (A000945) with initial value a(1)=5 instead of a(1)=2. A51308

a(0)=1, a(n) = prime(n³). A55875

Primes of the form p·q + p + q, where p and q are two successive primes. A96342

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, 6,6]; short d-string notation of pattern = [266]. A78849

a(n) = prime(n)*prime(n+1) + prime(n) + prime(n+1). A126199

Prime numbers p for which the quintic polynomial x⁵ - x - 1 modulo p completely factors into linear polynomials. A135844

Prime numbers p not of the form 10·k+1 for which the quintic polynomial x⁵-x-1 modulus p is factorizable into five binomials. A135845

Smallest prime of the form concatenation of prime(n) with itself followed by a 9, or 0 if no such prime exists. A92995

Primes p such that the differences between the 5 consecutive primes starting with p are (2,6,6,4). A78950

Prime numbers generated by concatenating k, k, and 9. A210514