Compare 201991 vs 202013
| Property | 201991 | 202013 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 731 × 27671 | 71 × 288591 |
| Prime factorization | 73 × 2767 | 7 × 28859 |
| Divisors count | 4 | 4 |
| Divisors | 1, 73, 2767, 201991 | 1, 7, 28859, 202013 |
| Number of properties | 1 | 1 |
| Semiprimes | 45656th | 45660th |
| Roman numberals | ||
| Base 2 | 1100010101000001112 | 1100010101000111012 |
| Base 3 | 1010210020113 | 1010210022223 |
| Base 4 | 3011100134 | 3011101314 |
| Base 5 | 224304315 | 224310235 |
| Base 6 | 41550516 | 41551256 |
| Base 7 | 15006167 | 15006507 |
| Base 8 | 6124078 | 6124358 |
| Base 9 | 3370649 | 3370889 |
| Base 10 | 20199110 | 20201310 |
| Base 11 | 12883911 | 12885911 |
| Base 12 | 98a8712 | 98aa512 |
| Base 13 | 70c2a13 | 70c4613 |
| Base 14 | 5387d14 | 5389714 |
| Base 15 | 3ecb115 | 3ecc815 |
| Base 16 | 3150716 | 3151d16 |