Compare 12391 vs 12487
| Property | 12391 | 12487 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 123911 | 124871 |
| Prime factorization | 12391 | 12487 |
| Divisors count | 2 | 2 |
| Divisors | 1, 12391 | 1, 12487 |
| Number of properties | 4 | 6 |
| Centered heptagonal primes | 18th | |
| Cousin primes (1st member) | 243rd | |
| Good primes | 204th | |
| Isolated primes | 996th | 1007th |
| Long primes | 577th | |
| Lucky primes | 252nd | 254th |
| Primes | 1479th | 1490th |
| Roman numberals | ||
| Base 2 | 110000011001112 | 110000110001112 |
| Base 3 | 1212222213 | 1220101113 |
| Base 4 | 30012134 | 30030134 |
| Base 5 | 3440315 | 3444225 |
| Base 6 | 1332116 | 1334516 |
| Base 7 | 510617 | 512567 |
| Base 8 | 301478 | 303078 |
| Base 9 | 178879 | 181149 |
| Base 10 | 1239110 | 1248710 |
| Base 11 | 934511 | 942211 |
| Base 12 | 720712 | 728712 |
| Base 13 | 584213 | 58b713 |
| Base 14 | 473114 | 479d14 |
| Base 15 | 3a1115 | 3a7715 |
| Base 16 | 306716 | 30c716 |