Compare 128399 vs 128879
| Property | 128399 | 128879 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1283991 | 1288791 |
| Prime factorization | 128399 | 128879 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128399 | 1, 128879 |
| Number of properties | 5 | 8 |
| Chen primes | 5216th | |
| Emirps | 2422nd | 2432nd |
| Happy primes | 1875th | |
| Harmonic primes | 4542nd | |
| Isolated primes | 9026th | 9057th |
| Primes | 12021st | 12064th |
| Safe primes | 820th | |
| Sexy primes (2nd member) | 2983rd | 2995th |
| Sophie germain primes | 1440th | |
| Roman numberals | ||
| Base 2 | 111110101100011112 | 111110111011011112 |
| Base 3 | 201120101123 | 201122100223 |
| Base 4 | 1331120334 | 1331312334 |
| Base 5 | 131020445 | 131110045 |
| Base 6 | 24302356 | 24323556 |
| Base 7 | 10432257 | 10445127 |
| Base 8 | 3726178 | 3735578 |
| Base 9 | 2151159 | 2157089 |
| Base 10 | 12839910 | 12887910 |
| Base 11 | 8851711 | 8891311 |
| Base 12 | 6237b12 | 626bb12 |
| Base 13 | 4659b13 | 4687a13 |
| Base 14 | 34b1514 | 34d7914 |
| Base 15 | 2809e15 | 282be15 |
| Base 16 | 1f58f16 | 1f76f16 |