Compare 1966 vs 2018
| Property | 1966 | 2018 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 9831 | 21 × 10091 |
| Prime factorization | 2 × 983 | 2 × 1009 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 983, 1966 | 1, 2, 1009, 2018 |
| Number of properties | 1 | 1 |
| Semiprimes | 568th | 579th |
| Roman numberals | MCMLXVI | MMXVIII |
| Base 2 | 111101011102 | 111111000102 |
| Base 3 | 22002113 | 22022023 |
| Base 4 | 1322324 | 1332024 |
| Base 5 | 303315 | 310335 |
| Base 6 | 130346 | 132026 |
| Base 7 | 55067 | 56127 |
| Base 8 | 36568 | 37428 |
| Base 9 | 26249 | 26829 |
| Base 10 | 196610 | 201810 |
| Base 11 | 152811 | 157511 |
| Base 12 | 117a12 | 120212 |
| Base 13 | b8313 | bc313 |
| Base 14 | a0614 | a4214 |
| Base 15 | 8b115 | 8e815 |
| Base 16 | 7ae16 | 7e216 |