Compare 642989 vs 643007
| Property | 642989 | 643007 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 6311 × 10191 | 471 × 136811 |
| Prime factorization | 631 × 1019 | 47 × 13681 |
| Divisors count | 4 | 4 |
| Divisors | 1, 631, 1019, 642989 | 1, 47, 13681, 643007 |
| Number of properties | 1 | 1 |
| Semiprimes | 137768th | 137771st |
| Roman numberals | ||
| Base 2 | 100111001111101011012 | 100111001111101111112 |
| Base 3 | 10122000001023 | 10122000010023 |
| Base 4 | 21303322314 | 21303323334 |
| Base 5 | 1310334245 | 1310340125 |
| Base 6 | 214404456 | 214405156 |
| Base 7 | 53154147 | 53154417 |
| Base 8 | 23476558 | 23476778 |
| Base 9 | 11800129 | 11800329 |
| Base 10 | 64298910 | 64300710 |
| Base 11 | 3aa0a611 | 3aa11211 |
| Base 12 | 27012512 | 27013b12 |
| Base 13 | 19688913 | 1968a113 |
| Base 14 | 12a47b14 | 12a49114 |
| Base 15 | ca7ae15 | ca7c215 |
| Base 16 | 9cfad16 | 9cfbf16 |