Number 221 - properties and curiosities

221 (number)

221

Number 221 properties

  • Interesting number
  • 221 is an odd number.

Prime factorization

Prime factorization of 221: 13 × 17.

Divisors

Divisor count: 4

1, 13, 17, 221

Factors of 221 are: 1, 13, 17, 221.

Representations

In octal, 221 is represented as 335.

In binary, 221 is represented as 11011101.

In hex, 221 is represented as DD.

Roman numeral: CCXXI

Curiosities

  • 221 has unique arithmetic behavior worth exploring through its factors and representations.

Quick answers

Is 221 prime?
No, 221 is not prime.

What are the factors of 221?
1, 13, 17, 221

What is 221 in binary?
11011101