Properties of the Number 31379

Thirty-One Thousand Three Hundred Seventy-Nine

Basics

Value: 31378 → 31379 → 31380

Parity: odd

Prime: Yes

Previous Prime: 31357

Next Prime: 31387

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 31379

Divisors: 1, 31379

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111101010010011

Octal: 75223

Duodecimal: 161AB

Hexadecimal: 7a93

Square: 984641641

Square Root: 177.14118662806794

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

Number of subsets of {1..n} containing all of their pairwise sums <= n. A326083

Minimal prime with n prime substrings (substrings with leading zeros are considered to be nonprime). A213321

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

Primes > 1000 in which every substring of lengths 2 and 3 are also prime. A69490

Prime(n) and prime(n+4) use the same digits. A69796

Primes equal to a sum of primes with differences congruent to (2,4) mod 6. A104160

Primes of the form m*(m+1)/2 + 4. A159048

Largest prime that can be obtained from n by successively appending digits to the right with the constraint that each of the numbers obtained that way must be prime; a(n)=0 if there is no such prime at all. A232129

Super-prime leaders: right-truncatable primes p with property that appending any single decimal digit to p does not produce a prime. A239747

a(n) = ∑_{1 <= i <= j <= k <= m <= n} gcd(i,j,k,m). A344992