Compare 19801 vs 19809
| Property | 19801 | 19809 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 198011 | 32 × 311 × 711 |
| Prime factorization | 19801 | 3 × 3 × 31 × 71 |
| Divisors count | 2 | 12 |
| Divisors | 1, 19801 | 1, 3, 9, 31, 71, 93, 213, 279, 639, 2201, 6603, 19809 |
| Number of properties | 6 | 0 |
| Additive primes | 1042nd | |
| Centered square primes | 35th | |
| Emirps | 623rd | |
| Isolated primes | 1566th | |
| Primes | 2241st | |
| Pythagorean primes | 1113th | |
| Roman numberals | ||
| Base 2 | 1001101010110012 | 1001101011000012 |
| Base 3 | 10000111013 | 10000112003 |
| Base 4 | 103111214 | 103112014 |
| Base 5 | 11132015 | 11132145 |
| Base 6 | 2314016 | 2314136 |
| Base 7 | 1115057 | 1115167 |
| Base 8 | 465318 | 465418 |
| Base 9 | 301419 | 301509 |
| Base 10 | 1980110 | 1980910 |
| Base 11 | 1397111 | 1397911 |
| Base 12 | b56112 | b56912 |
| Base 13 | 902213 | 902a13 |
| Base 14 | 730514 | 730d14 |
| Base 15 | 5d0115 | 5d0915 |
| Base 16 | 4d5916 | 4d6116 |