Compare 1639 vs 1658
| Property | 1639 | 1658 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 111 × 1491 | 21 × 8291 |
| Prime factorization | 11 × 149 | 2 × 829 |
| Divisors count | 4 | 4 |
| Divisors | 1, 11, 149, 1639 | 1, 2, 829, 1658 |
| Number of properties | 1 | 1 |
| Semiprimes | 469th | 478th |
| Roman numberals | MDCXXXIX | MDCLVIII |
| Base 2 | 110011001112 | 110011110102 |
| Base 3 | 20202013 | 20211023 |
| Base 4 | 1212134 | 1213224 |
| Base 5 | 230245 | 231135 |
| Base 6 | 113316 | 114026 |
| Base 7 | 45317 | 45567 |
| Base 8 | 31478 | 31728 |
| Base 9 | 22219 | 22429 |
| Base 10 | 163910 | 165810 |
| Base 11 | 126011 | 127811 |
| Base 12 | b4712 | b6212 |
| Base 13 | 99113 | 9a713 |
| Base 14 | 85114 | 86614 |
| Base 15 | 74415 | 75815 |
| Base 16 | 66716 | 67a16 |