Compare 20287 vs 20407
| Property | 20287 | 20407 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 202871 | 204071 |
| Prime factorization | 20287 | 20407 |
| Divisors count | 2 | 2 |
| Divisors | 1, 20287 | 1, 20407 |
| Number of properties | 4 | 6 |
| Additive primes | 1065th | 1072nd |
| Chen primes | 1126th | 1134th |
| Cousin primes (1st member) | 352nd | |
| Isolated primes | 1603rd | 1615th |
| Long primes | 880th | |
| Primes | 2292nd | 2306th |
| Roman numberals | ||
| Base 2 | 1001111001111112 | 1001111101101112 |
| Base 3 | 10002111013 | 10002222113 |
| Base 4 | 103303334 | 103323134 |
| Base 5 | 11221225 | 11231125 |
| Base 6 | 2335316 | 2342516 |
| Base 7 | 1131017 | 1133327 |
| Base 8 | 474778 | 476678 |
| Base 9 | 307419 | 308849 |
| Base 10 | 2028710 | 2040710 |
| Base 11 | 1427311 | 1437211 |
| Base 12 | b8a712 | b98712 |
| Base 13 | 930713 | 939a13 |
| Base 14 | 757114 | 761914 |
| Base 15 | 602715 | 60a715 |
| Base 16 | 4f3f16 | 4fb716 |