Compare 128021 vs 128287
| Property | 128021 | 128287 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 1280211 | 1282871 |
| Prime factorization | 128021 | 128287 |
| Divisors count | 2 | 2 |
| Divisors | 1, 128021 | 1, 128287 |
| Number of properties | 6 | 5 |
| Chen primes | 5182nd | |
| Cousin primes (1st member) | 1492nd | |
| Good primes | 785th | |
| Harmonic primes | 4511th | |
| Isolated primes | 9001st | 9016th |
| Long primes | 4499th | 4508th |
| Primes | 11988th | 12009th |
| Pythagorean primes | 5959th | |
| Roman numberals | ||
| Base 2 | 111110100000101012 | 111110101000111112 |
| Base 3 | 201111211123 | 201112221013 |
| Base 4 | 1331001114 | 1331101334 |
| Base 5 | 130440415 | 131011225 |
| Base 6 | 24244056 | 24255316 |
| Base 7 | 10421457 | 10430057 |
| Base 8 | 3720258 | 3724378 |
| Base 9 | 2145459 | 2148719 |
| Base 10 | 12802110 | 12828710 |
| Base 11 | 8820311 | 8842511 |
| Base 12 | 6210512 | 622a712 |
| Base 13 | 4636a13 | 4651313 |
| Base 14 | 3492514 | 34a7514 |
| Base 15 | 27deb15 | 2802715 |
| Base 16 | 1f41516 | 1f51f16 |