even, composite · 398th positive integer
The number 398
398 is an even composite number. It is the 398th positive integer.
Quick reference
| Prime factorization | 2 × 199 |
| Divisors | 1, 2, 199, 398 |
| Binary | 110001110 |
| Hexadecimal | 0x18E |
| Roman numeral | CCCXCVIII |
| Digit sum | 20 |
| Properties | even, composite |
Frequently asked
Is 398 a prime number?
No. 398 is composite. Its prime factorization is 2 × 199.
What are the factors of 398?
The factors (divisors) of 398 are 1, 2, 199, 398.
What is 398 in binary?
398 in binary is 110001110. In hexadecimal it's 18E.
What is 398 as a Roman numeral?
398 in Roman numerals is CCCXCVIII.
What's the digit sum of 398?
Adding the digits of 398: 3 + 9 + 8 = 20.