Compare 201 vs 205
| Property | 201 | 205 | 
|---|---|---|
| Type | semiprime | semiprime | 
| Unique factors | 2 | 2 | 
| Total factors | 2 | 2 | 
| Prime factorization | 31 × 671 | 51 × 411 | 
| Prime factorization | 3 × 67 | 5 × 41 | 
| Divisors count | 4 | 4 | 
| Divisors | 1, 3, 67, 201 | 1, 5, 41, 205 | 
| Number of properties | 1 | 1 | 
| Semiprimes | 63rd | 66th | 
| Roman numberals | CCI | CCV | 
| Base 2 | 110010012 | 110011012 | 
| Base 3 | 211103 | 211213 | 
| Base 4 | 30214 | 30314 | 
| Base 5 | 13015 | 13105 | 
| Base 6 | 5336 | 5416 | 
| Base 7 | 4057 | 4127 | 
| Base 8 | 3118 | 3158 | 
| Base 9 | 2439 | 2479 | 
| Base 10 | 20110 | 20510 | 
| Base 11 | 17311 | 17711 | 
| Base 12 | 14912 | 15112 | 
| Base 13 | 12613 | 12a13 | 
| Base 14 | 10514 | 10914 | 
| Base 15 | d615 | da15 | 
| Base 16 | c916 | cd16 |