225
Number 225 properties
- 225 is an odd number.
- 225 is a perfect square (15 × 15).
- 225 is a Harshad number, which means it is divisible by the sum of its digits (225 = 9, and 225 is divisible by 9).
Number 225 - properties and curiosities
225 (number)
Prime factorization
Prime factorization of 225: 3^2 × 5^2.
Divisors
Divisor count: 9
1, 3, 5, 9, 15, 25, 45, 75, 225
Factors of 225 are: 1, 3, 5, 9, 15, 25, 45, 75, 225.
Representations
In octal, 225 is represented as 341.
In binary, 225 is represented as 11100001.
In hex, 225 is represented as E1.
Roman numeral: CCXXV
Curiosities
- 225 is a perfect square, so it forms a square grid with equal side lengths.
- 225 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 225 prime?
No, 225 is not prime.
What are the factors of 225?
1, 3, 5, 9, 15, 25, 45, 75, 225
What is 225 in binary?
11100001