Properties of the Number 31993

Thirty-One Thousand Nine Hundred Ninety-Three

Basics

Value: 31992 → 31993 → 31994

Parity: odd

Prime: No

Previous Prime: 31991

Next Prime: 32003

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 13 × 23 × 107

Divisors: 1, 13, 23, 107, 299, 1391, 2461, 31993

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111110011111001

Octal: 76371

Duodecimal: 16621

Hexadecimal: 7cf9

Square: 1023552049

Square Root: 178.86587153506954

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

Boustrophedon transform of powers of 2. A752

Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of e.g.f. exp(k·x)*(sec(x) + tan(x)). A292975

a(n) = n³ + 71·n + 1. A124363

Number of minimal edge cuts in the 3 X n grid graph. A378933

Number of (n+1)X6 0..3 arrays with column and row pair sums b(i,j)=a(i,j)+a(i,j-1) and c(i,j)=a(i,j)+a(i-1,j) nondecreasing in column and row directions, respectively. A203738

Number of (n+1) X (5+1) 0..3 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction. A250704

Duplicate of A023750. A31993