even, composite, palindrome · 22nd positive integer
The number 22
22 is an even composite number. It is the 22nd positive integer.
Quick reference
| Prime factorization | 2 × 11 |
| Divisors | 1, 2, 11, 22 |
| Binary | 10110 |
| Hexadecimal | 0x16 |
| Roman numeral | XXII |
| Digit sum | 4 |
| Properties | even, composite, palindrome |
Frequently asked
Is 22 a prime number?
No. 22 is composite. Its prime factorization is 2 × 11.
What are the factors of 22?
The factors (divisors) of 22 are 1, 2, 11, 22.
What is 22 in binary?
22 in binary is 10110. In hexadecimal it's 16.
What is 22 as a Roman numeral?
22 in Roman numerals is XXII.
What's the digit sum of 22?
Adding the digits of 22: 2 + 2 = 4.