Compare 3988 vs 3991
| Property | 3988 | 3991 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 22 × 9971 | 131 × 3071 |
| Prime factorization | 2 × 2 × 997 | 13 × 307 |
| Divisors count | 6 | 4 |
| Divisors | 1, 2, 4, 997, 1994, 3988 | 1, 13, 307, 3991 |
| Number of properties | 0 | 1 |
| Semiprimes | 1102nd | |
| Roman numberals | MMMCMLXXXVIII | MMMCMXCI |
| Base 2 | 1111100101002 | 1111100101112 |
| Base 3 | 121102013 | 121102113 |
| Base 4 | 3321104 | 3321134 |
| Base 5 | 1114235 | 1114315 |
| Base 6 | 302446 | 302516 |
| Base 7 | 144257 | 144317 |
| Base 8 | 76248 | 76278 |
| Base 9 | 54219 | 54249 |
| Base 10 | 398810 | 399110 |
| Base 11 | 2aa611 | 2aa911 |
| Base 12 | 238412 | 238712 |
| Base 13 | 1a7a13 | 1a8013 |
| Base 14 | 164c14 | 165114 |
| Base 15 | 12ad15 | 12b115 |
| Base 16 | f9416 | f9716 |