Compare 3999 vs 4009
| Property | 3999 | 4009 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 311 × 431 | 191 × 2111 |
| Prime factorization | 3 × 31 × 43 | 19 × 211 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 31, 43, 93, 129, 1333, 3999 | 1, 19, 211, 4009 |
| Number of properties | 0 | 1 |
| Semiprimes | 1107th | |
| Roman numberals | MMMCMXCIX | MMMMIX |
| Base 2 | 1111100111112 | 1111101010012 |
| Base 3 | 121110103 | 121111113 |
| Base 4 | 3321334 | 3322214 |
| Base 5 | 1114445 | 1120145 |
| Base 6 | 303036 | 303216 |
| Base 7 | 144427 | 144557 |
| Base 8 | 76378 | 76518 |
| Base 9 | 54339 | 54449 |
| Base 10 | 399910 | 400910 |
| Base 11 | 300611 | 301511 |
| Base 12 | 239312 | 23a112 |
| Base 13 | 1a8813 | 1a9513 |
| Base 14 | 165914 | 166514 |
| Base 15 | 12b915 | 12c415 |
| Base 16 | f9f16 | fa916 |