even, composite · 278th positive integer
The number 278
278 is an even composite number. It is the 278th positive integer.
Quick reference
| Prime factorization | 2 × 139 |
| Divisors | 1, 2, 139, 278 |
| Binary | 100010110 |
| Hexadecimal | 0x116 |
| Roman numeral | CCLXXVIII |
| Digit sum | 17 |
| Properties | even, composite |
Frequently asked
Is 278 a prime number?
No. 278 is composite. Its prime factorization is 2 × 139.
What are the factors of 278?
The factors (divisors) of 278 are 1, 2, 139, 278.
What is 278 in binary?
278 in binary is 100010110. In hexadecimal it's 116.
What is 278 as a Roman numeral?
278 in Roman numerals is CCLXXVIII.
What's the digit sum of 278?
Adding the digits of 278: 2 + 7 + 8 = 17.