even, composite, perfect square · 16th positive integer
The number 16
16 is an even composite number. It is the 16th positive integer.
Quick reference
| Prime factorization | 2 × 2 × 2 × 2 |
| Divisors | 1, 2, 4, 8, 16 |
| Binary | 10000 |
| Hexadecimal | 0x10 |
| Roman numeral | XVI |
| Digit sum | 7 |
| Properties | even, composite, perfect square |
Frequently asked
Is 16 a prime number?
No. 16 is composite. Its prime factorization is 2 × 2 × 2 × 2.
What are the factors of 16?
The factors (divisors) of 16 are 1, 2, 4, 8, 16.
What is 16 in binary?
16 in binary is 10000. In hexadecimal it's 10.
What is 16 as a Roman numeral?
16 in Roman numerals is XVI.
What's the digit sum of 16?
Adding the digits of 16: 1 + 6 = 7.