Properties of the Number 31088

Thirty-One Thousand Eighty-Eight

Basics

Value: 31087 → 31088 → 31089

Parity: even

Prime: No

Previous Prime: 31081

Next Prime: 31091

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 ⁴ × 29 × 67

Divisors: 1, 2, 4, 8, 16, 29, 58, 67, 116, 134

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 111100101110000

Octal: 74560

Duodecimal: 15BA8

Hexadecimal: 7970

Square: 966463744

Square Root: 176.31789472427351

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 (undirected) Hamiltonian paths on the 4 X n knight graph. A79137

Irregular table read by rows: The number of k-faced polyhedra, where k>=4, created when an n-antiprism, formed from two n-sided regular polygons joined by 2n adjacent alternating triangles, is internally cut by all the planes defined by any three of its vertices. A338808

Number of (undirected) Hamiltonian paths on the first n cells of the 8 X ceiling(n/8) knight graph. A389758

Bond percolation series for hexagonal lattice. A6809

Number of permutations of length n which avoid the patterns 123 and 4312. A116699

Number of (undirected) Hamiltonian paths on the first n cells of the 4 X ceiling(n/4) knight graph. A389754

Number of (undirected) Hamiltonian paths on the 8 X n knight graph. A389760

Array read by antidiagonals: A(k, n) is the number of undirected Hamiltonian paths on the k X n knight graph. A390833

G.f. = φ⁴*F², where φ = g.f. for A028930, F = g.f. for A028959. A328533

Position of n-th 0 in A031087. A31088