Compare 12388 vs 12391
| Property | 12388 | 12391 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 4 | 1 |
| Prime factorization | 22 × 191 × 1631 | 123911 |
| Prime factorization | 2 × 2 × 19 × 163 | 12391 |
| Divisors count | 12 | 2 |
| Divisors | 1, 2, 4, 19, 38, 76, 163, 326, 652, 3097, 6194, 12388 | 1, 12391 |
| Number of properties | 0 | 4 |
| Centered heptagonal primes | 18th | |
| Isolated primes | 996th | |
| Lucky primes | 252nd | |
| Primes | 1479th | |
| Roman numberals | ||
| Base 2 | 110000011001002 | 110000011001112 |
| Base 3 | 1212222113 | 1212222213 |
| Base 4 | 30012104 | 30012134 |
| Base 5 | 3440235 | 3440315 |
| Base 6 | 1332046 | 1332116 |
| Base 7 | 510557 | 510617 |
| Base 8 | 301448 | 301478 |
| Base 9 | 178849 | 178879 |
| Base 10 | 1238810 | 1239110 |
| Base 11 | 934211 | 934511 |
| Base 12 | 720412 | 720712 |
| Base 13 | 583c13 | 584213 |
| Base 14 | 472c14 | 473114 |
| Base 15 | 3a0d15 | 3a1115 |
| Base 16 | 306416 | 306716 |