Compare 221399 vs 221447
| Property | 221399 | 221447 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2213991 | 2214471 |
| Prime factorization | 221399 | 221447 |
| Divisors count | 2 | 2 |
| Divisors | 1, 221399 | 1, 221447 |
| Number of properties | 4 | 6 |
| Chen primes | 8221st | 8223rd |
| Harmonic primes | 7407th | |
| Isolated primes | 15049th | |
| Long primes | 7385th | |
| Primes | 19726th | 19730th |
| Sexy primes (1st member) | 4667th | |
| Sexy primes (2nd member) | 4666th | |
| Twin primes (1st member) | 2340th | |
| Roman numberals | ||
| Base 2 | 1101100000110101112 | 1101100001000001112 |
| Base 3 | 1020202002223 | 1020202022023 |
| Base 4 | 3120031134 | 3120100134 |
| Base 5 | 240410445 | 240412425 |
| Base 6 | 44245556 | 44251156 |
| Base 7 | 16113237 | 16114227 |
| Base 8 | 6603278 | 6604078 |
| Base 9 | 3666289 | 3666829 |
| Base 10 | 22139910 | 22144710 |
| Base 11 | 14138211 | 14141611 |
| Base 12 | a815b12 | a819b12 |
| Base 13 | 79a0913 | 79a4513 |
| Base 14 | 5a98314 | 5a9b914 |
| Base 15 | 458ee15 | 4593215 |
| Base 16 | 360d716 | 3610716 |