Compare 428 vs 440
| Property | 428 | 440 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 2 | 3 |
| Total factors | 3 | 5 |
| Prime factorization | 22 × 1071 | 23 × 51 × 111 |
| Prime factorization | 2 × 2 × 107 | 2 × 2 × 2 × 5 × 11 |
| Divisors count | 6 | 16 |
| Divisors | 1, 2, 4, 107, 214, 428 | 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440 |
| Number of properties | 0 | 0 |
| Roman numberals | CDXXVIII | CDXL |
| Base 2 | 1101011002 | 1101110002 |
| Base 3 | 1202123 | 1210223 |
| Base 4 | 122304 | 123204 |
| Base 5 | 32035 | 32305 |
| Base 6 | 15526 | 20126 |
| Base 7 | 11517 | 11667 |
| Base 8 | 6548 | 6708 |
| Base 9 | 5259 | 5389 |
| Base 10 | 42810 | 44010 |
| Base 11 | 35a11 | 37011 |
| Base 12 | 2b812 | 30812 |
| Base 13 | 26c13 | 27b13 |
| Base 14 | 22814 | 23614 |
| Base 15 | 1d815 | 1e515 |
| Base 16 | 1ac16 | 1b816 |