Compare 19801 vs 19919
| Property | 19801 | 19919 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198011 | 199191 |
| Prime factorization | 19801 | 19919 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19801 | 1, 19919 |
| Number of properties | 6 | 7 |
| Additive primes | 1042nd | 1046th |
| Centered square primes | 35th | |
| Chen primes | 1107th | |
| Emirps | 623rd | |
| Harmonic primes | 816th | |
| Isolated primes | 1566th | 1573rd |
| Primes | 2241st | 2252nd |
| Pythagorean primes | 1113th | |
| Sexy primes (2nd member) | 691st | |
| Sophie germain primes | 325th | |
| Roman numberals | ||
| Base 2 | 1001101010110012 | 1001101110011112 |
| Base 3 | 10000111013 | 10000222023 |
| Base 4 | 103111214 | 103130334 |
| Base 5 | 11132015 | 11141345 |
| Base 6 | 2314016 | 2321156 |
| Base 7 | 1115057 | 1120347 |
| Base 8 | 465318 | 467178 |
| Base 9 | 301419 | 302829 |
| Base 10 | 1980110 | 1991910 |
| Base 11 | 1397111 | 13a6911 |
| Base 12 | b56112 | b63b12 |
| Base 13 | 902213 | 90b313 |
| Base 14 | 730514 | 738b14 |
| Base 15 | 5d0115 | 5d7e15 |
| Base 16 | 4d5916 | 4dcf16 |