Properties of the Number 31347

Thirty-One Thousand Three Hundred Forty-Seven

Basics

Value: 31346 → 31347 → 31348

Parity: odd

Prime: No

Previous Prime: 31337

Next Prime: 31357

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ⁶ × 43

Divisors: 1, 3, 9, 27, 43, 81, 129, 243, 387, 729

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111101001110011

Octal: 75163

Duodecimal: 16183

Hexadecimal: 7a73

Square: 982634409

Square Root: 177.050840156154

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

a(n) is the solution to the postage stamp problem with 4 denominations and n stamps. A1209

Numbers that are the sum of seven fourth powers in exactly seven ways. A345829

a(n) = 3·a(n-1) + 18·a(n-2), a(0)=0, a(1)=1. A80424

Triangle, T(n, k, q) = e(n, k, q), where e(n, k, q) = ((1 - (-q)^k)/(1+q))*e(n-1, k, q) + (-q)^k-1*e(n-1, k-1, q), e(n, 0, q) = e(n, n, q) = 1, and q = 2, read by rows. A156535

Composite numbers whose prime factors contain no digits other than 3 and 4. A36314

a(n) = (2·n - 11)*n². A15245

Discriminants of totally complex sextic fields (negated). A23687

Number of n-bead necklaces labeled with numbers 1..n allowing reversal, with no adjacent beads differing by more than 1. A208715

a(n) is the sum of all possible pairs of the first n primes. A162867

Multiplicative digital root of n (keep multiplying digits of n until reaching a single digit). A31347