Compare 204509 vs 204515
| Property | 204509 | 204515 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2045091 | 51 × 409031 |
| Prime factorization | 204509 | 5 × 40903 |
| Divisors count | 2 | 4 |
| Divisors | 1, 204509 | 1, 5, 40903, 204515 |
| Number of properties | 5 | 1 |
| Chen primes | 7669th | |
| Long primes | 6875th | |
| Primes | 18344th | |
| Pythagorean primes | 9164th | |
| Semiprimes | 46232nd | |
| Twin primes (1st member) | 2200th | |
| Roman numberals | ||
| Base 2 | 1100011110110111012 | 1100011110111000112 |
| Base 3 | 1011011121023 | 1011011121223 |
| Base 4 | 3013231314 | 3013232034 |
| Base 5 | 230210145 | 230210305 |
| Base 6 | 42144456 | 42144556 |
| Base 7 | 15111447 | 15111537 |
| Base 8 | 6173358 | 6173438 |
| Base 9 | 3414729 | 3414789 |
| Base 10 | 20450910 | 20451510 |
| Base 11 | 12a71811 | 12a72311 |
| Base 12 | 9a42512 | 9a42b12 |
| Base 13 | 7211613 | 7211c13 |
| Base 14 | 5475b14 | 5476314 |
| Base 15 | 408de15 | 408e515 |
| Base 16 | 31edd16 | 31ee316 |