Compare 21211 vs 21647
| Property | 21211 | 21647 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 212111 | 216471 |
| Prime factorization | 21211 | 21647 |
| Divisors count | 2 | 2 |
| Divisors | 1, 21211 | 1, 21647 |
| Number of properties | 5 | 4 |
| Additive primes | 1108th | |
| Chen primes | 1193rd | |
| Isolated primes | 1664th | |
| Long primes | 906th | 918th |
| Lucky primes | 388th | |
| Primes | 2385th | 2430th |
| Twin primes (1st member) | 370th | |
| Roman numberals | ||
| Base 2 | 1010010110110112 | 1010100100011112 |
| Base 3 | 10020021213 | 10022002023 |
| Base 4 | 110231234 | 111020334 |
| Base 5 | 11343215 | 11430425 |
| Base 6 | 2421116 | 2441156 |
| Base 7 | 1155617 | 1200537 |
| Base 8 | 513338 | 522178 |
| Base 9 | 320779 | 326229 |
| Base 10 | 2121110 | 2164710 |
| Base 11 | 14a3311 | 1529a11 |
| Base 12 | 1033712 | 1063b12 |
| Base 13 | 986813 | 9b1213 |
| Base 14 | 7a3114 | 7c6314 |
| Base 15 | 644115 | 663215 |
| Base 16 | 52db16 | 548f16 |