Compare 212111 vs 212123
| Property | 212111 | 212123 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 471 × 45131 | 2121231 |
| Prime factorization | 47 × 4513 | 212123 |
| Divisors count | 4 | 2 |
| Divisors | 1, 47, 4513, 212111 | 1, 212123 |
| Number of properties | 1 | 6 |
| Additive primes | 7663rd | |
| Happy primes | 2888th | |
| Isolated primes | 14441st | |
| Primes | 18984th | |
| Semiprimes | 47813th | |
| Sexy primes (2nd member) | 4502nd | |
| Sophie germain primes | 2160th | |
| Roman numberals | ||
| Base 2 | 1100111100100011112 | 1100111100100110112 |
| Base 3 | 1012022212223 | 1012022221023 |
| Base 4 | 3033020334 | 3033021234 |
| Base 5 | 232414215 | 232414435 |
| Base 6 | 43135556 | 43140156 |
| Base 7 | 15422547 | 15423027 |
| Base 8 | 6362178 | 6362338 |
| Base 9 | 3528589 | 3528729 |
| Base 10 | 21211110 | 21212310 |
| Base 11 | 1353a911 | 13540a11 |
| Base 12 | a28bb12 | a290b12 |
| Base 13 | 7571313 | 7572213 |
| Base 14 | 5742b14 | 5743914 |
| Base 15 | 42cab15 | 42cb815 |
| Base 16 | 33c8f16 | 33c9b16 |