Compare 638142 vs 638149
| Property | 638142 | 638149 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 21 × 31 × 1063571 | 1391 × 45911 |
| Prime factorization | 2 × 3 × 106357 | 139 × 4591 |
| Divisors count | 8 | 4 |
| Divisors | 1, 2, 3, 6, 106357, 212714, 319071, 638142 | 1, 139, 4591, 638149 |
| Number of properties | 0 | 1 |
| Semiprimes | 136730th | |
| Roman numberals | ||
| Base 2 | 100110111100101111102 | 100110111100110001012 |
| Base 3 | 10121021002203 | 10121021010113 |
| Base 4 | 21233023324 | 21233030114 |
| Base 5 | 1304100325 | 1304100445 |
| Base 6 | 214022106 | 214022216 |
| Base 7 | 52653217 | 52653317 |
| Base 8 | 23362768 | 23363058 |
| Base 9 | 11723269 | 11723349 |
| Base 10 | 63814210 | 63814910 |
| Base 11 | 3a649a11 | 3a64a611 |
| Base 12 | 26936612 | 26937112 |
| Base 13 | 1945cb13 | 19460513 |
| Base 14 | 1287b814 | 1287c114 |
| Base 15 | c912c15 | c913415 |
| Base 16 | 9bcbe16 | 9bcc516 |