Compare 19801 vs 21841
| Property | 19801 | 21841 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198011 | 218411 |
| Prime factorization | 19801 | 21841 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19801 | 1, 21841 |
| Number of properties | 6 | 6 |
| Additive primes | 1042nd | |
| Centered square primes | 35th | 38th |
| Emirps | 623rd | |
| Happy primes | 406th | |
| Isolated primes | 1566th | |
| Lucky primes | 397th | |
| Primes | 2241st | 2450th |
| Pythagorean primes | 1113th | 1216th |
| Twin primes (2nd member) | 372nd | |
| Roman numberals | ||
| Base 2 | 1001101010110012 | 1010101010100012 |
| Base 3 | 10000111013 | 10022212213 |
| Base 4 | 103111214 | 111111014 |
| Base 5 | 11132015 | 11443315 |
| Base 6 | 2314016 | 2450416 |
| Base 7 | 1115057 | 1204517 |
| Base 8 | 465318 | 525218 |
| Base 9 | 301419 | 328579 |
| Base 10 | 1980110 | 2184110 |
| Base 11 | 1397111 | 1545611 |
| Base 12 | b56112 | 1078112 |
| Base 13 | 902213 | 9c3113 |
| Base 14 | 730514 | 7d6114 |
| Base 15 | 5d0115 | 671115 |
| Base 16 | 4d5916 | 555116 |