Number 28 - properties and curiosities

28 (number)

28

Number 28 properties

  • Happy
  • Triangular
  • 28 is an even number.
  • 28 is triangular and equals T7.

Prime factorization

Prime factorization of 28: 2^2 × 7.

Divisors

Divisor count: 6

1, 2, 4, 7, 14, 28

Factors of 28 are: 1, 2, 4, 7, 14, 28.

Representations

In octal, 28 is represented as 34.

In binary, 28 is represented as 11100.

In hex, 28 is represented as 1C.

Roman numeral: XXVIII

Curiosities

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

Quick answers

Is 28 prime?
No, 28 is not prime.

What are the factors of 28?
1, 2, 4, 7, 14, 28

What is 28 in binary?
11100