Properties of the Number 31799

Thirty-One Thousand Seven Hundred Ninety-Nine

Basics

Value: 31798 → 31799 → 31800

Parity: odd

Prime: Yes

Previous Prime: 31793

Next Prime: 31817

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 31799

Divisors: 1, 31799

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111110000110111

Octal: 76067

Duodecimal: 1649B

Hexadecimal: 7c37

Square: 1011176401

Square Root: 178.32274111845635

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

Primes p such that p's set of distinct digits is {1,3,7,9}. A108386

Emirps whose internal digits are also an emirp. A225235

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)+1 are twin primes with p(h) = h-th prime. A129311

Numbers k such that 11·12^k + 1 is prime. A251259

Primes p such that 2·p+1 and ((2·p+1)² + 1)/2 = p² + (p+1)² are primes. A98717

Palindromic primes in base 8 which are also emirps (A006567) in base 10. A168110

Number of walks within N³ (the first octant of Z³) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 1), (-1, 1, 1), (1, -1, 0), (1, 0, -1), (1, 0, 0)}. A148910

Emirps using each of the digits 1, 3, 7, 9 at least once, but no others. A158917

Primes p congruent to 1 modulo 13 such that x¹³ = 2 has a solution modulo p. A275773

a(n) is the smallest m > 1 such that m divides ∑_k=1..m prime(k)ⁿ. A85450