even, composite, triangular · 820th positive integer
The number 820
820 is an even composite number. It is the 820th positive integer.
Quick reference
| Prime factorization | 2 × 2 × 5 × 41 |
| Divisors | 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820 |
| Binary | 1100110100 |
| Hexadecimal | 0x334 |
| Roman numeral | DCCCXX |
| Digit sum | 10 |
| Properties | even, composite, triangular |
Frequently asked
Is 820 a prime number?
No. 820 is composite. Its prime factorization is 2 × 2 × 5 × 41.
What are the factors of 820?
The factors (divisors) of 820 are 1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820.
What is 820 in binary?
820 in binary is 1100110100. In hexadecimal it's 334.
What is 820 as a Roman numeral?
820 in Roman numerals is DCCCXX.
What's the digit sum of 820?
Adding the digits of 820: 8 + 2 + 0 = 10.