Compare 390205 vs 390209
| Property | 390205 | 390209 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 51 × 780411 | 3902091 |
| Prime factorization | 5 × 78041 | 390209 |
| Divisors count | 4 | 2 |
| Divisors | 1, 5, 78041, 390205 | 1, 390209 |
| Number of properties | 1 | 4 |
| Additive primes | 13101st | |
| Chen primes | 13388th | |
| Primes | 33085th | |
| Semiprimes | 85528th | |
| Twin primes (1st member) | 3724th | |
| Roman numberals | ||
| Base 2 | 10111110100001111012 | 10111110100010000012 |
| Base 3 | 2012110210013 | 2012110210123 |
| Base 4 | 11331003314 | 11331010014 |
| Base 5 | 444413105 | 444413145 |
| Base 6 | 122103016 | 122103056 |
| Base 7 | 32134247 | 32134317 |
| Base 8 | 13720758 | 13721018 |
| Base 9 | 6542319 | 6542359 |
| Base 10 | 39020510 | 39020910 |
| Base 11 | 24719211 | 24719611 |
| Base 12 | 16999112 | 16999512 |
| Base 13 | 1087ba13 | 1087c113 |
| Base 14 | a22bb14 | a22c114 |
| Base 15 | 7a93a15 | 7a93e15 |
| Base 16 | 5f43d16 | 5f44116 |