Properties of the Number 68928

Sixty-Eight Thousand Nine Hundred Twenty-Eight

Basics

Value: 68927 → 68928 → 68929

Parity: even

Prime: No

Previous Prime: 68927

Next Prime: 68947

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 ⁶ × 3 × 359

Divisors: 1, 2, 3, 4, 6, 8, 12, 16, 24, 32

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110101000000

Octal: 206500

Duodecimal: 33A80

Hexadecimal: 10d40

Square: 4751069184

Square Root: 262.541425302751

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(0) = a(1) = 1, a(2) = x, a(3) = 2x², a(n) = x*(n-1)*a(n-1) + ∑_j=2..n-2 (j-1)*a(j)*a(n-j), n>=4 and for x = 2. A111088

a(n) = n³ + 7. A84377

Decimal representation of the diagonal from the corner to the origin of the n-th stage of growth of the two-dimensional cellular automaton defined by "Rule 454", based on the 5-celled von Neumann neighborhood. A288395

Molecular topological indices of the n X n X n grid graphs. A192829

Number of n-step adjacent expansions on the hexagonal (honeycomb) lattice. Holes allowed. A261834

Convolution of A048272 and A022567. A274355

Number of incongruent ways to tile a 3 X 2n room with 1x2 Tatami mats. At most 3 Tatami mats may meet at a point. A68928

Number of permutations of [2n] containing an increasing subsequence of length n. A269021