even, composite · 420th positive integer
The number 420
420 is an even composite number. It is the 420th positive integer.
Quick reference
| Prime factorization | 2 × 2 × 3 × 5 × 7 |
| Divisors | 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420 |
| Binary | 110100100 |
| Hexadecimal | 0x1A4 |
| Roman numeral | CDXX |
| Digit sum | 6 |
| Properties | even, composite |
Frequently asked
Is 420 a prime number?
No. 420 is composite. Its prime factorization is 2 × 2 × 3 × 5 × 7.
What are the factors of 420?
The factors (divisors) of 420 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420.
What is 420 in binary?
420 in binary is 110100100. In hexadecimal it's 1A4.
What is 420 as a Roman numeral?
420 in Roman numerals is CDXX.
What's the digit sum of 420?
Adding the digits of 420: 4 + 2 + 0 = 6.