Compare 20287 vs 20443
| Property | 20287 | 20443 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 202871 | 204431 |
| Prime factorization | 20287 | 20443 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20287 | 1, 20443 |
| Number of properties | 4 | 5 |
| Additive primes | 1065th | 1074th |
| Chen primes | 1126th | |
| Harmonic primes | 841st | |
| Isolated primes | 1603rd | |
| Primes | 2292nd | 2310th |
| Twin primes (2nd member) | 347th | |
| Ulam primes | 171st | |
| Roman numberals | ||
| Base 2 | 1001111001111112 | 1001111110110112 |
| Base 3 | 10002111013 | 10010010113 |
| Base 4 | 103303334 | 103331234 |
| Base 5 | 11221225 | 11232335 |
| Base 6 | 2335316 | 2343516 |
| Base 7 | 1131017 | 1134137 |
| Base 8 | 474778 | 477338 |
| Base 9 | 307419 | 310349 |
| Base 10 | 2028710 | 2044310 |
| Base 11 | 1427311 | 143a511 |
| Base 12 | b8a712 | b9b712 |
| Base 13 | 930713 | 93c713 |
| Base 14 | 757114 | 764314 |
| Base 15 | 602715 | 60cd15 |
| Base 16 | 4f3f16 | 4fdb16 |