820
Number 820 properties
- 820 is an even number.
- 820 is triangular and equals T40.
- 820 is a Harshad number, which means it is divisible by the sum of its digits (820 = 10, and 820 is divisible by 10).
Number 820 - properties and curiosities
820 (number)
Prime factorization
Prime factorization of 820: 2^2 × 5 × 41.
Divisors
Divisor count: 12
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
Factors of 820 are: 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820.
Representations
In octal, 820 is represented as 1464.
In binary, 820 is represented as 1100110100.
In hex, 820 is represented as 334.
Roman numeral: DCCCXX
Curiosities
- 820 is divisible by the sum of its digits.
Related numbers
Quick answers
Is 820 prime?
No, 820 is not prime.
What are the factors of 820?
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
What is 820 in binary?
1100110100