Compare 1641 vs 1671
| Property | 1641 | 1671 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 5471 | 31 × 5571 |
| Prime factorization | 3 × 547 | 3 × 557 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 547, 1641 | 1, 3, 557, 1671 |
| Number of properties | 1 | 1 |
| Semiprimes | 470th | 480th |
| Roman numberals | MDCXLI | MDCLXXI |
| Base 2 | 110011010012 | 110100001112 |
| Base 3 | 20202103 | 20212203 |
| Base 4 | 1212214 | 1220134 |
| Base 5 | 230315 | 231415 |
| Base 6 | 113336 | 114236 |
| Base 7 | 45337 | 46057 |
| Base 8 | 31518 | 32078 |
| Base 9 | 22239 | 22569 |
| Base 10 | 164110 | 167110 |
| Base 11 | 126211 | 128a11 |
| Base 12 | b4912 | b7312 |
| Base 13 | 99313 | 9b713 |
| Base 14 | 85314 | 87514 |
| Base 15 | 74615 | 76615 |
| Base 16 | 66916 | 68716 |