Compare 3990 vs 3997
| Property | 3990 | 3997 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 5 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 21 × 31 × 51 × 71 × 191 | 71 × 5711 |
| Prime factorization | 2 × 3 × 5 × 7 × 19 | 7 × 571 |
| Divisors count | 32 | 4 |
| Divisors | 1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 30, 35, 38, 42, 57, 70, 95, 105, 114, 133, 190, 210, 266, 285, 399, 570, 665, 798, 1330, 1995, 3990 | 1, 7, 571, 3997 |
| Number of properties | 0 | 1 |
| Semiprimes | 1104th | |
| Roman numberals | MMMCMXC | MMMCMXCVII |
| Base 2 | 1111100101102 | 1111100111012 |
| Base 3 | 121102103 | 121110013 |
| Base 4 | 3321124 | 3321314 |
| Base 5 | 1114305 | 1114425 |
| Base 6 | 302506 | 303016 |
| Base 7 | 144307 | 144407 |
| Base 8 | 76268 | 76358 |
| Base 9 | 54239 | 54319 |
| Base 10 | 399010 | 399710 |
| Base 11 | 2aa811 | 300411 |
| Base 12 | 238612 | 239112 |
| Base 13 | 1a7c13 | 1a8613 |
| Base 14 | 165014 | 165714 |
| Base 15 | 12b015 | 12b715 |
| Base 16 | f9616 | f9d16 |