Compare 12389 vs 12391
| Property | 12389 | 12391 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 131 × 9531 | 123911 |
| Prime factorization | 13 × 953 | 12391 |
| Divisors count | 4 | 2 |
| Divisors | 1, 13, 953, 12389 | 1, 12391 |
| Number of properties | 1 | 4 |
| Centered heptagonal primes | 18th | |
| Isolated primes | 996th | |
| Lucky primes | 252nd | |
| Primes | 1479th | |
| Semiprimes | 3229th | |
| Roman numberals | ||
| Base 2 | 110000011001012 | 110000011001112 |
| Base 3 | 1212222123 | 1212222213 |
| Base 4 | 30012114 | 30012134 |
| Base 5 | 3440245 | 3440315 |
| Base 6 | 1332056 | 1332116 |
| Base 7 | 510567 | 510617 |
| Base 8 | 301458 | 301478 |
| Base 9 | 178859 | 178879 |
| Base 10 | 1238910 | 1239110 |
| Base 11 | 934311 | 934511 |
| Base 12 | 720512 | 720712 |
| Base 13 | 584013 | 584213 |
| Base 14 | 472d14 | 473114 |
| Base 15 | 3a0e15 | 3a1115 |
| Base 16 | 306516 | 306716 |