Compare 66387 vs 66390
| Property | 66387 | 66390 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 4 |
| Total factors | 2 | 4 |
| Prime factorization | 31 × 221291 | 21 × 31 × 51 × 22131 |
| Prime factorization | 3 × 22129 | 2 × 3 × 5 × 2213 |
| Divisors count | 4 | 16 |
| Divisors | 1, 3, 22129, 66387 | 1, 2, 3, 5, 6, 10, 15, 30, 2213, 4426, 6639, 11065, 13278, 22130, 33195, 66390 |
| Number of properties | 1 | 0 |
| Semiprimes | 15858th | |
| Roman numberals | ||
| Base 2 | 100000011010100112 | 100000011010101102 |
| Base 3 | 101010012103 | 101010012203 |
| Base 4 | 1000311034 | 1000311124 |
| Base 5 | 41110225 | 41110305 |
| Base 6 | 12312036 | 12312106 |
| Base 7 | 3643567 | 3643627 |
| Base 8 | 2015238 | 2015268 |
| Base 9 | 1110539 | 1110569 |
| Base 10 | 6638710 | 6639010 |
| Base 11 | 4597211 | 4597511 |
| Base 12 | 3250312 | 3250612 |
| Base 13 | 242a913 | 242ac13 |
| Base 14 | 1a29d14 | 1a2a214 |
| Base 15 | 14a0c15 | 14a1015 |
| Base 16 | 1035316 | 1035616 |