441
Number 441 properties
- 441 is an odd number.
- 441 is a perfect square (21 × 21).
- 441 is a Harshad number, which means it is divisible by the sum of its digits (441 = 9, and 441 is divisible by 9).
Number 441 - properties and curiosities
441 (number)
Prime factorization
Prime factorization of 441: 3^2 × 7^2.
Divisors
Divisor count: 9
1, 3, 7, 9, 21, 49, 63, 147, 441
Factors of 441 are: 1, 3, 7, 9, 21, 49, 63, 147, 441.
Representations
In octal, 441 is represented as 671.
In binary, 441 is represented as 110111001.
In hex, 441 is represented as 1B9.
Roman numeral: CDXLI
Curiosities
- 441 is a perfect square, so it forms a square grid with equal side lengths.
- 441 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 441 prime?
No, 441 is not prime.
What are the factors of 441?
1, 3, 7, 9, 21, 49, 63, 147, 441
What is 441 in binary?
110111001