Number 1215 - properties and curiosities

1215 (number)

1215

Number 1215 properties

  • Happy
  • Harshad
  • 1215 is an odd number.
  • 1215 is a Harshad number, which means it is divisible by the sum of its digits (1215 = 9, and 1215 is divisible by 9).

Prime factorization

Prime factorization of 1215: 3^5 × 5.

Divisors

Divisor count: 12

1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215

Factors of 1215 are: 1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215.

Representations

In octal, 1215 is represented as 2277.

In binary, 1215 is represented as 10010111111.

In hex, 1215 is represented as 4BF.

Roman numeral: MCCXV

Curiosities

  • 1215 is divisible by the sum of its digits.

Quick answers

Is 1215 prime?
No, 1215 is not prime.

What are the factors of 1215?
1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215

What is 1215 in binary?
10010111111