Compare 21211 vs 21218
| Property | 21211 | 21218 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 212111 | 21 × 1032 |
| Prime factorization | 21211 | 2 × 103 × 103 |
| Divisors count | 2 | 6 |
| Divisors | 1, 21211 | 1, 2, 103, 206, 10609, 21218 |
| Number of properties | 5 | 0 |
| Additive primes | 1108th | |
| Isolated primes | 1664th | |
| Long primes | 906th | |
| Lucky primes | 388th | |
| Primes | 2385th | |
| Roman numberals | ||
| Base 2 | 1010010110110112 | 1010010111000102 |
| Base 3 | 10020021213 | 10020022123 |
| Base 4 | 110231234 | 110232024 |
| Base 5 | 11343215 | 11343335 |
| Base 6 | 2421116 | 2421226 |
| Base 7 | 1155617 | 1156017 |
| Base 8 | 513338 | 513428 |
| Base 9 | 320779 | 320859 |
| Base 10 | 2121110 | 2121810 |
| Base 11 | 14a3311 | 14a3a11 |
| Base 12 | 1033712 | 1034212 |
| Base 13 | 986813 | 987213 |
| Base 14 | 7a3114 | 7a3814 |
| Base 15 | 644115 | 644815 |
| Base 16 | 52db16 | 52e216 |