Compare 128399 vs 128409
| Property | 128399 | 128409 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 1283991 | 31 × 231 × 18611 |
| Prime factorization | 128399 | 3 × 23 × 1861 |
| Divisors count | 2 | 8 |
| Divisors | 1, 128399 | 1, 3, 23, 69, 1861, 5583, 42803, 128409 |
| Number of properties | 5 | 0 |
| Emirps | 2422nd | |
| Isolated primes | 9026th | |
| Primes | 12021st | |
| Sexy primes (2nd member) | 2983rd | |
| Sophie germain primes | 1440th | |
| Roman numberals | ||
| Base 2 | 111110101100011112 | 111110101100110012 |
| Base 3 | 201120101123 | 201120102203 |
| Base 4 | 1331120334 | 1331121214 |
| Base 5 | 131020445 | 131021145 |
| Base 6 | 24302356 | 24302536 |
| Base 7 | 10432257 | 10432417 |
| Base 8 | 3726178 | 3726318 |
| Base 9 | 2151159 | 2151269 |
| Base 10 | 12839910 | 12840910 |
| Base 11 | 8851711 | 8852611 |
| Base 12 | 6237b12 | 6238912 |
| Base 13 | 4659b13 | 465a813 |
| Base 14 | 34b1514 | 34b2114 |
| Base 15 | 2809e15 | 280a915 |
| Base 16 | 1f58f16 | 1f59916 |