Compare 21211 vs 21213
| Property | 21211 | 21213 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 2 |
| Total factors | 1 | 3 |
| Prime factorization | 212111 | 32 × 23571 |
| Prime factorization | 21211 | 3 × 3 × 2357 |
| Divisors count | 2 | 6 |
| Divisors | 1, 21211 | 1, 3, 9, 2357, 7071, 21213 |
| Number of properties | 5 | 0 |
| Additive primes | 1108th | |
| Isolated primes | 1664th | |
| Long primes | 906th | |
| Lucky primes | 388th | |
| Primes | 2385th | |
| Roman numberals | ||
| Base 2 | 1010010110110112 | 1010010110111012 |
| Base 3 | 10020021213 | 10020022003 |
| Base 4 | 110231234 | 110231314 |
| Base 5 | 11343215 | 11343235 |
| Base 6 | 2421116 | 2421136 |
| Base 7 | 1155617 | 1155637 |
| Base 8 | 513338 | 513358 |
| Base 9 | 320779 | 320809 |
| Base 10 | 2121110 | 2121310 |
| Base 11 | 14a3311 | 14a3511 |
| Base 12 | 1033712 | 1033912 |
| Base 13 | 986813 | 986a13 |
| Base 14 | 7a3114 | 7a3314 |
| Base 15 | 644115 | 644315 |
| Base 16 | 52db16 | 52dd16 |