Compare 1628 vs 1639
| Property | 1628 | 1639 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 4 | 2 |
| Prime factorization | 22 × 111 × 371 | 111 × 1491 |
| Prime factorization | 2 × 2 × 11 × 37 | 11 × 149 |
| Divisors count | 12 | 4 |
| Divisors | 1, 2, 4, 11, 22, 37, 44, 74, 148, 407, 814, 1628 | 1, 11, 149, 1639 |
| Number of properties | 0 | 1 |
| Semiprimes | 469th | |
| Roman numberals | MDCXXVIII | MDCXXXIX |
| Base 2 | 110010111002 | 110011001112 |
| Base 3 | 20200223 | 20202013 |
| Base 4 | 1211304 | 1212134 |
| Base 5 | 230035 | 230245 |
| Base 6 | 113126 | 113316 |
| Base 7 | 45147 | 45317 |
| Base 8 | 31348 | 31478 |
| Base 9 | 22089 | 22219 |
| Base 10 | 162810 | 163910 |
| Base 11 | 125011 | 126011 |
| Base 12 | b3812 | b4712 |
| Base 13 | 98313 | 99113 |
| Base 14 | 84414 | 85114 |
| Base 15 | 73815 | 74415 |
| Base 16 | 65c16 | 66716 |