Compare 201979 vs 201991
| Property | 201979 | 201991 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2019791 | 731 × 27671 |
| Prime factorization | 201979 | 73 × 2767 |
| Divisors count | 2 | 4 |
| Divisors | 1, 201979 | 1, 73, 2767, 201991 |
| Number of properties | 3 | 1 |
| Isolated primes | 13802nd | |
| Primes | 18147th | |
| Semiprimes | 45656th | |
| Sexy primes (2nd member) | 4330th | |
| Roman numberals | ||
| Base 2 | 1100010100111110112 | 1100010101000001112 |
| Base 3 | 1010210012013 | 1010210020113 |
| Base 4 | 3011033234 | 3011100134 |
| Base 5 | 224304045 | 224304315 |
| Base 6 | 41550316 | 41550516 |
| Base 7 | 15006017 | 15006167 |
| Base 8 | 6123738 | 6124078 |
| Base 9 | 3370519 | 3370649 |
| Base 10 | 20197910 | 20199110 |
| Base 11 | 12882811 | 12883911 |
| Base 12 | 98a7712 | 98a8712 |
| Base 13 | 70c1b13 | 70c2a13 |
| Base 14 | 5387114 | 5387d14 |
| Base 15 | 3eca415 | 3ecb115 |
| Base 16 | 314fb16 | 3150716 |