Compare 642129 vs 642155
| Property | 642129 | 642155 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 2140431 | 51 × 1284311 |
| Prime factorization | 3 × 214043 | 5 × 128431 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 214043, 642129 | 1, 5, 128431, 642155 |
| Number of properties | 1 | 1 |
| Semiprimes | 137579th | 137587th |
| Roman numberals | ||
| Base 2 | 100111001100010100012 | 100111001100011010112 |
| Base 3 | 10121212111203 | 10121212121123 |
| Base 4 | 21303011014 | 21303012234 |
| Base 5 | 1310220045 | 1310221105 |
| Base 6 | 214324536 | 214325356 |
| Base 7 | 53130457 | 53131137 |
| Base 8 | 23461218 | 23461538 |
| Base 9 | 11777469 | 11777759 |
| Base 10 | 64212910 | 64215510 |
| Base 11 | 3a949411 | 3a950811 |
| Base 12 | 26b72912 | 26b74b12 |
| Base 13 | 19637713 | 19639713 |
| Base 14 | 12a02514 | 12a04314 |
| Base 15 | ca3d915 | ca40515 |
| Base 16 | 9cc5116 | 9cc6b16 |