Compare 12391 vs 12421
| Property | 12391 | 12421 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 123911 | 124211 |
| Prime factorization | 12391 | 12421 |
| Divisors count | 2 | 2 |
| Divisors | 1, 12391 | 1, 12421 |
| Number of properties | 4 | 7 |
| Centered heptagonal primes | 18th | |
| Harmonic primes | 534th | |
| Isolated primes | 996th | 1000th |
| Long primes | 573rd | |
| Lucky primes | 252nd | |
| Palindromic primes | 26th | |
| Primes | 1479th | 1483rd |
| Pythagorean primes | 733rd | |
| Super primes | 235th | |
| Roman numberals | ||
| Base 2 | 110000011001112 | 110000100001012 |
| Base 3 | 1212222213 | 1220010013 |
| Base 4 | 30012134 | 30020114 |
| Base 5 | 3440315 | 3441415 |
| Base 6 | 1332116 | 1333016 |
| Base 7 | 510617 | 511337 |
| Base 8 | 301478 | 302058 |
| Base 9 | 178879 | 180319 |
| Base 10 | 1239110 | 1242110 |
| Base 11 | 934511 | 937211 |
| Base 12 | 720712 | 723112 |
| Base 13 | 584213 | 586613 |
| Base 14 | 473114 | 475314 |
| Base 15 | 3a1115 | 3a3115 |
| Base 16 | 306716 | 308516 |