Compare 390 vs 399
| Property | 390 | 399 |
|---|---|---|
| Type | composite number | composite number |
| Unique factors | 4 | 3 |
| Total factors | 4 | 3 |
| Prime factorization | 21 × 31 × 51 × 131 | 31 × 71 × 191 |
| Prime factorization | 2 × 3 × 5 × 13 | 3 × 7 × 19 |
| Divisors count | 16 | 8 |
| Divisors | 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390 | 1, 3, 7, 19, 21, 57, 133, 399 |
| Number of properties | 0 | 0 |
| Roman numberals | CCCXC | CCCXCIX |
| Base 2 | 1100001102 | 1100011112 |
| Base 3 | 1121103 | 1122103 |
| Base 4 | 120124 | 120334 |
| Base 5 | 30305 | 30445 |
| Base 6 | 14506 | 15036 |
| Base 7 | 10657 | 11107 |
| Base 8 | 6068 | 6178 |
| Base 9 | 4739 | 4839 |
| Base 10 | 39010 | 39910 |
| Base 11 | 32511 | 33311 |
| Base 12 | 28612 | 29312 |
| Base 13 | 24013 | 24913 |
| Base 14 | 1dc14 | 20714 |
| Base 15 | 1b015 | 1b915 |
| Base 16 | 18616 | 18f16 |