Compare 128111 vs 128221
| Property | 128111 | 128221 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1281111 | 1282211 |
| Prime factorization | 128111 | 128221 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128111 | 1, 128221 |
| Number of properties | 6 | 4 |
| Chen primes | 5185th | |
| Emirps | 2416th | |
| Good primes | 781st | |
| Harmonic primes | 4515th | |
| Isolated primes | 9013th | |
| Long primes | 4505th | |
| Primes | 11993rd | 12004th |
| Pythagorean primes | 5968th | |
| Twin primes (1st member) | 1495th | |
| Roman numberals | ||
| Base 2 | 111110100011011112 | 111110100110111012 |
| Base 3 | 201112012123 | 201112122213 |
| Base 4 | 1331012334 | 1331031314 |
| Base 5 | 130444215 | 131003415 |
| Base 6 | 24250356 | 24253416 |
| Base 7 | 10423347 | 10425527 |
| Base 8 | 3721578 | 3723358 |
| Base 9 | 2146559 | 2147879 |
| Base 10 | 12811110 | 12822110 |
| Base 11 | 8828511 | 8837511 |
| Base 12 | 6217b12 | 6225112 |
| Base 13 | 4640913 | 4649213 |
| Base 14 | 3498b14 | 34a2914 |
| Base 15 | 27e5b15 | 27ed115 |
| Base 16 | 1f46f16 | 1f4dd16 |