Compare 128981 vs 129209
| Property | 128981 | 129209 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1289811 | 1292091 |
| Prime factorization | 128981 | 129209 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128981 | 1, 129209 |
| Number of properties | 10 | 5 |
| Additive primes | 4975th | 4985th |
| Chen primes | 5219th | 5228th |
| Isolated primes | 9079th | |
| Long primes | 4528th | |
| Primes | 12073rd | 12094th |
| Prime triplets (1st member) | 612th | |
| Pythagorean primes | 6004th | 6017th |
| Sexy primes (1st member) | 2996th | |
| Sexy prime triplets (1st member) | 640th | |
| Super primes | 1446th | |
| Twin primes (1st member) | 1507th | |
| Roman numberals | ||
| Base 2 | 111110111110101012 | 111111000101110012 |
| Base 3 | 201122210023 | 201200201123 |
| Base 4 | 1331331114 | 1332023214 |
| Base 5 | 131114115 | 131133145 |
| Base 6 | 24330456 | 24341056 |
| Base 7 | 10450167 | 10454637 |
| Base 8 | 3737258 | 3742718 |
| Base 9 | 2158329 | 2162159 |
| Base 10 | 12898110 | 12920910 |
| Base 11 | 889a611 | 8909311 |
| Base 12 | 6278512 | 6293512 |
| Base 13 | 4692813 | 46a7213 |
| Base 14 | 3500d14 | 3513314 |
| Base 15 | 2833b15 | 2843e15 |
| Base 16 | 1f7d516 | 1f8b916 |