Properties of the Number 31068

Thirty-One Thousand Sixty-Eight

Basics

Value: 31067 → 31068 → 31069

Parity: even

Prime: No

Previous Prime: 31063

Next Prime: 31069

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 863

Divisors: 1, 2, 3, 4, 6, 9, 12, 18, 36, 863

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100101011100

Octal: 74534

Duodecimal: 15B90

Hexadecimal: 795c

Square: 965220624

Square Root: 176.26116985882058

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 permutations on n letters that have only cycles of length 3 or less. A57693

θ series of the 12-dimensional lattice of hyper-roots D₃(SU(3)). A288488

Sums of rows of A077529. A77531

Triangle read by rows: T(n,k) is the number of permutations in S_n for which all cycles have length <= k. A330858

Values of m such that N=(am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,11. A64242

Number of (3+1) X (n+1) 0..2 arrays with nondecreasing x(i,j)-x(i,j-1) in the i direction and nondecreasing x(i,j)+x(i-1,j) in the j direction. A250758

Sum over all closed Deutsch paths of length n of products over all peaks p of x_p/y_p, where x_p and y_p are the coordinates of peak p. A333114

Sigmabonacci numbers: a(n)=a(n-1)+σ(a(n-2)). σ(n)=Sum of divisors of n. A74371

Position of n-th 0 in A031067. A31068

G.f. satisfies: A(x) = ∑_n>=0 xⁿ*g_n(x)ⁿ where g_n(x) = A(x) - xⁿ*g_n(x)ⁿ for n>=0. A187010