Compare 18839 vs 20507
| Property | 18839 | 20507 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 188391 | 205071 |
| Prime factorization | 18839 | 20507 |
| Divisors count | 2 | 2 |
| Divisors | 1, 18839 | 1, 20507 |
| Number of properties | 7 | 4 |
| Additive primes | 1005th | |
| Chen primes | 1062nd | 1139th |
| Happy primes | 366th | |
| Harmonic primes | 772nd | |
| Isolated primes | 1498th | |
| Primes | 2147th | 2314th |
| Safe primes | 184th | 194th |
| Twin primes (1st member) | 349th | |
| Roman numberals | ||
| Base 2 | 1001001100101112 | 1010000000110112 |
| Base 3 | 2212112023 | 10010101123 |
| Base 4 | 102121134 | 110001234 |
| Base 5 | 11003245 | 11240125 |
| Base 6 | 2231156 | 2345356 |
| Base 7 | 1056327 | 1135347 |
| Base 8 | 446278 | 500338 |
| Base 9 | 277529 | 311159 |
| Base 10 | 1883910 | 2050710 |
| Base 11 | 1317711 | 1445311 |
| Base 12 | aa9b12 | ba4b12 |
| Base 13 | 876213 | 944613 |
| Base 14 | 6c1914 | 768b14 |
| Base 15 | 58ae15 | 612215 |
| Base 16 | 499716 | 501b16 |