Properties of the Number 68280

Sixty-Eight Thousand Two Hundred Eighty

Basics

Value: 68279 → 68280 → 68281

Parity: even

Prime: No

Previous Prime: 68279

Next Prime: 68281

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 5 × 569

Divisors: 1, 2, 3, 4, 5, 6, 8, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000101010111000

Octal: 205270

Duodecimal: 33620

Hexadecimal: 10ab8

Square: 4662158400

Square Root: 261.30442016927304

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

Determinant of n X n matrix of form [1 2 3 0 0 0 0 0 0 0 / 2 1 2 3 0 0 0 0 0 0 / 3 2 1 2 3 0 0 0 0 0 / 0 3 2 1 2 3 0 0 0 0 / 0 0 3 2 1 2 3 0 0 0 / 0 0 0 3 2 1 2 3 0 0 / 0 0 0 0 3 2 1 2 3 0 / 0 0 0 0 0 3 2 1 2 3 / 0 0 0 0 0 0 3 2 1 2 / 0 0 0 0 0 0 0 3 2 1]. A71533

Number of ways to place zero or more nonadjacent 1,0 1,1 2,0 3,1 4,2 5,1 5,2 polyhexes in any orientation on a planar nXnXn triangular grid. A155349

Least number k such that k and n·k share at least one digit. A241146

1/13 times the number of colorings of an n X n rhombic hexagonal array with 13 colors. A68280