Number 285 - properties and curiosities

285 (number)

285

Number 285 properties

  • Harshad
  • 285 is an odd number.
  • 285 is a Harshad number, which means it is divisible by the sum of its digits (285 = 15, and 285 is divisible by 15).

Prime factorization

Prime factorization of 285: 3 × 5 × 19.

Divisors

Divisor count: 8

1, 3, 5, 15, 19, 57, 95, 285

Factors of 285 are: 1, 3, 5, 15, 19, 57, 95, 285.

Representations

In octal, 285 is represented as 435.

In binary, 285 is represented as 100011101.

In hex, 285 is represented as 11D.

Roman numeral: CCLXXXV

Curiosities

  • 285 is divisible by the sum of its digits.

Quick answers

Is 285 prime?
No, 285 is not prime.

What are the factors of 285?
1, 3, 5, 15, 19, 57, 95, 285

What is 285 in binary?
100011101