Compare 668138 vs 668139
| Property | 668138 | 668139 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 3340691 | 31 × 2227131 |
| Prime factorization | 2 × 334069 | 3 × 222713 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 334069, 668138 | 1, 3, 222713, 668139 |
| Number of properties | 1 | 1 |
| Semiprimes | 142899th | 142900th |
| Roman numberals | ||
| Base 2 | 101000110001111010102 | 101000110001111010112 |
| Base 3 | 10202211112123 | 10202211112203 |
| Base 4 | 22030132224 | 22030132234 |
| Base 5 | 1323400235 | 1323400245 |
| Base 6 | 221531226 | 221531236 |
| Base 7 | 54516327 | 54516337 |
| Base 8 | 24307528 | 24307538 |
| Base 9 | 12274559 | 12274569 |
| Base 10 | 66813810 | 66813910 |
| Base 11 | 416a8911 | 416a8a11 |
| Base 12 | 2827a212 | 2827a312 |
| Base 13 | 1a516313 | 1a516413 |
| Base 14 | 1356c214 | 1356c314 |
| Base 15 | d2e7815 | d2e7915 |
| Base 16 | a31ea16 | a31eb16 |