Compare 666142 vs 666206
| Property | 666142 | 666206 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 3330711 | 21 × 3331031 |
| Prime factorization | 2 × 333071 | 2 × 333103 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 333071, 666142 | 1, 2, 333103, 666206 |
| Number of properties | 1 | 1 |
| Semiprimes | 142485th | 142496th |
| Roman numberals | ||
| Base 2 | 101000101010000111102 | 101000101010010111102 |
| Base 3 | 10202112022213 | 10202112120223 |
| Base 4 | 22022201324 | 22022211324 |
| Base 5 | 1323040325 | 1323043115 |
| Base 6 | 221355546 | 221401426 |
| Base 7 | 54430517 | 54432027 |
| Base 8 | 24250368 | 24251368 |
| Base 9 | 12246879 | 12247689 |
| Base 10 | 66614210 | 66620610 |
| Base 11 | 41553411 | 41559211 |
| Base 12 | 2815ba12 | 28165212 |
| Base 13 | 1a428913 | 1a430813 |
| Base 14 | 134a9814 | 134b0214 |
| Base 15 | d259715 | d25db15 |
| Base 16 | a2a1e16 | a2a5e16 |