Properties of the Number 68666

Sixty-Eight Thousand Six Hundred Sixty-Six

Basics

Value: 68665 → 68666 → 68667

Parity: even

Prime: No

Previous Prime: 68659

Next Prime: 68669

Digit Sum: 32

Digital Root: 5

Palindrome: No

Factorization: 2 × 13 × 19 × 139

Divisors: 1, 2, 13, 19, 26, 38, 139, 247, 278, 494

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10000110000111010

Octal: 206072

Duodecimal: 338A2

Hexadecimal: 10c3a

Square: 4715019556

Square Root: 262.0419813693981

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

Numbers k such that binomial(2k,k)+1 is prime. A66699

Numbers with digits 6 and 8 only. A284635

a(1) = 5; a(n) = smallest palindromic multiple of a(n-1). A68666