Compare 642899 vs 643187
| Property | 642899 | 643187 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6428991 | 6431871 |
| Prime factorization | 642899 | 643187 |
| Divisors count | 2 | 2 |
| Divisors | 1, 642899 | 1, 643187 |
| Number of properties | 4 | 6 |
| Additive primes | 20443rd | |
| Chen primes | 20457th | |
| Cousin primes (2nd member) | 5648th | |
| Isolated primes | 40973rd | 40996th |
| Primes | 52282nd | 52305th |
| Safe primes | 3028th | 3029th |
| Sophie germain primes | 5327th | |
| Roman numberals | ||
| Base 2 | 100111001111010100112 | 100111010000011100112 |
| Base 3 | 10121222200023 | 10122000212023 |
| Base 4 | 21303311034 | 21310013034 |
| Base 5 | 1310330445 | 1310402225 |
| Base 6 | 214402156 | 214414156 |
| Base 7 | 53152257 | 53161167 |
| Base 8 | 23475238 | 23501638 |
| Base 9 | 11788029 | 11802529 |
| Base 10 | 64289910 | 64318710 |
| Base 11 | 3aa02411 | 3aa26611 |
| Base 12 | 27006b12 | 27026b12 |
| Base 13 | 19681a13 | 1969ac13 |
| Base 14 | 12a41514 | 12a57d14 |
| Base 15 | ca74e15 | ca89215 |
| Base 16 | 9cf5316 | 9d07316 |