Compare 221447 vs 221621
| Property | 221447 | 221621 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2214471 | 2216211 |
| Prime factorization | 221447 | 221621 |
| Divisors count | 2 | 2 |
| Divisors | 1, 221447 | 1, 221621 |
| Number of properties | 6 | 7 |
| Chen primes | 8223rd | 8229th |
| Harmonic primes | 7407th | 7412th |
| Isolated primes | 15049th | |
| Long primes | 7385th | 7390th |
| Primes | 19730th | 19745th |
| Pythagorean primes | 9852nd | |
| Sexy primes (1st member) | 4667th | |
| Sophie germain primes | 2239th | |
| Twin primes (1st member) | 2343rd | |
| Roman numberals | ||
| Base 2 | 1101100001000001112 | 1101100001101101012 |
| Base 3 | 1020202022023 | 1020210000123 |
| Base 4 | 3120100134 | 3120123114 |
| Base 5 | 240412425 | 240424415 |
| Base 6 | 44251156 | 44300056 |
| Base 7 | 16114227 | 16120617 |
| Base 8 | 6604078 | 6606658 |
| Base 9 | 3666829 | 3670059 |
| Base 10 | 22144710 | 22162110 |
| Base 11 | 14141611 | 14156411 |
| Base 12 | a819b12 | a830512 |
| Base 13 | 79a4513 | 79b4a13 |
| Base 14 | 5a9b914 | 5aaa114 |
| Base 15 | 4593215 | 459eb15 |
| Base 16 | 3610716 | 361b516 |