Compare 201209 vs 201557
| Property | 201209 | 201557 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2012091 | 2015571 |
| Prime factorization | 201209 | 201557 |
| Divisors count | 2 | 2 |
| Divisors | 1, 201209 | 1, 201557 |
| Number of properties | 6 | 5 |
| Chen primes | 7562nd | 7571st |
| Harmonic primes | 6799th | |
| Isolated primes | 13765th | |
| Primes | 18078th | 18104th |
| Pythagorean primes | 9021st | 9035th |
| Sexy primes (2nd member) | 4316th | |
| Sophie germain primes | 2065th | |
| Twin primes (1st member) | 2166th | |
| Roman numberals | ||
| Base 2 | 1100010001111110012 | 1100010011010101012 |
| Base 3 | 1010200000123 | 1010201110023 |
| Base 4 | 3010133214 | 3010311114 |
| Base 5 | 224143145 | 224222125 |
| Base 6 | 41513056 | 41530456 |
| Base 7 | 14654217 | 14664267 |
| Base 8 | 6107718 | 6115258 |
| Base 9 | 3360059 | 3364329 |
| Base 10 | 20120910 | 20155710 |
| Base 11 | 12819811 | 12848411 |
| Base 12 | 9853512 | 9878512 |
| Base 13 | 7077813 | 7098513 |
| Base 14 | 5348114 | 5364d14 |
| Base 15 | 3e93e15 | 3eac215 |
| Base 16 | 311f916 | 3135516 |