Compare 221447 vs 221807
| Property | 221447 | 221807 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2214471 | 2218071 |
| Prime factorization | 221447 | 221807 |
| Divisors count | 2 | 2 |
| Divisors | 1, 221447 | 1, 221807 |
| Number of properties | 6 | 6 |
| Chen primes | 8223rd | 8234th |
| Harmonic primes | 7407th | 7418th |
| Isolated primes | 15049th | 15073rd |
| Long primes | 7385th | |
| Primes | 19730th | 19762nd |
| Sexy primes (1st member) | 4667th | 4676th |
| Ulam primes | 1413th | |
| Roman numberals | ||
| Base 2 | 1101100001000001112 | 1101100010011011112 |
| Base 3 | 1020202022023 | 1020210210023 |
| Base 4 | 3120100134 | 3120212334 |
| Base 5 | 240412425 | 240442125 |
| Base 6 | 44251156 | 44305156 |
| Base 7 | 16114227 | 16124457 |
| Base 8 | 6604078 | 6611578 |
| Base 9 | 3666829 | 3672329 |
| Base 10 | 22144710 | 22180710 |
| Base 11 | 14141611 | 14171311 |
| Base 12 | a819b12 | a843b12 |
| Base 13 | 79a4513 | 79c6113 |
| Base 14 | 5a9b914 | 5ab9514 |
| Base 15 | 4593215 | 45ac215 |
| Base 16 | 3610716 | 3626f16 |