Compare 215389 vs 215398
| Property | 215389 | 215398 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 2153891 | 21 × 1076991 |
| Prime factorization | 215389 | 2 × 107699 |
| Divisors count | 2 | 4 |
| Divisors | 1, 215389 | 1, 2, 107699, 215398 |
| Number of properties | 5 | 1 |
| Cousin primes (1st member) | 2275th | |
| Harmonic primes | 7211th | |
| Isolated primes | 14663rd | |
| Primes | 19240th | |
| Pythagorean primes | 9600th | |
| Semiprimes | 48535th | |
| Roman numberals | ||
| Base 2 | 1101001001010111012 | 1101001001011001102 |
| Base 3 | 1012211101013 | 1012211102013 |
| Base 4 | 3102111314 | 3102112124 |
| Base 5 | 233430245 | 233430435 |
| Base 6 | 43411016 | 43411146 |
| Base 7 | 15546467 | 15546617 |
| Base 8 | 6445358 | 6445468 |
| Base 9 | 3574119 | 3574219 |
| Base 10 | 21538910 | 21539810 |
| Base 11 | 13790911 | 13791711 |
| Base 12 | a479112 | a479a12 |
| Base 13 | 7706513 | 7707113 |
| Base 14 | 586cd14 | 586d814 |
| Base 15 | 43c4415 | 43c4d15 |
| Base 16 | 3495d16 | 3496616 |