Number 66 - properties and curiosities

66 (number)

66

Number 66 properties

  • Palindrome
  • Triangular
  • 66 is an even number.
  • 66 is a palindrome.
  • 66 is triangular and equals T11.

Prime factorization

Prime factorization of 66: 2 × 3 × 11.

Divisors

Divisor count: 8

1, 2, 3, 6, 11, 22, 33, 66

Factors of 66 are: 1, 2, 3, 6, 11, 22, 33, 66.

Representations

In octal, 66 is represented as 102.

In binary, 66 is represented as 1000010.

In hex, 66 is represented as 42.

Roman numeral: LXVI

Curiosities

  • 66 reads the same from left to right and right to left.

Quick answers

Is 66 prime?
No, 66 is not prime.

What are the factors of 66?
1, 2, 3, 6, 11, 22, 33, 66

What is 66 in binary?
1000010