Compare 19801 vs 19861
| Property | 19801 | 19861 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 198011 | 198611 |
| Prime factorization | 19801 | 19861 |
| Divisors count | 2 | 2 |
| Divisors | 1, 19801 | 1, 19861 |
| Number of properties | 6 | 5 |
| Additive primes | 1042nd | |
| Centered square primes | 35th | |
| Emirps | 623rd | |
| Isolated primes | 1566th | 1570th |
| Lucky primes | 365th | |
| Primes | 2241st | 2247th |
| Pythagorean primes | 1113th | 1117th |
| Sexy primes (1st member) | 690th | |
| Roman numberals | ||
| Base 2 | 1001101010110012 | 1001101100101012 |
| Base 3 | 10000111013 | 10000201213 |
| Base 4 | 103111214 | 103121114 |
| Base 5 | 11132015 | 11134215 |
| Base 6 | 2314016 | 2315416 |
| Base 7 | 1115057 | 1116227 |
| Base 8 | 465318 | 466258 |
| Base 9 | 301419 | 302179 |
| Base 10 | 1980110 | 1986110 |
| Base 11 | 1397111 | 13a1611 |
| Base 12 | b56112 | b5b112 |
| Base 13 | 902213 | 906a13 |
| Base 14 | 730514 | 734914 |
| Base 15 | 5d0115 | 5d4115 |
| Base 16 | 4d5916 | 4d9516 |