Compare 1999 vs 2005
Property | 1999 | 2005 |
---|---|---|
Type | prime | semiprime |
Unique factors | 1 | 2 |
Total factors | 1 | 2 |
Prime factorization | 19991 | 51 × 4011 |
Prime factorization | 1999 | 5 × 401 |
Divisors count | 2 | 4 |
Divisors | 1, 1999 | 1, 5, 401, 2005 |
Number of properties | 8 | 1 |
Centered triangular primes | 10th | |
Cousin primes (1st member) | 65th | |
Primes | 303rd | |
Prime triplets (2nd member) | 50th | |
Prime triplets (3rd member) | 49th | |
Semiprimes | 578th | |
Sexy primes (2nd member) | 128th | |
Sexy prime triplets (3rd member) | 50th | |
Twin primes (2nd member) | 61st | |
Roman numberals | MCMXCIX | MMV |
Base 2 | 111110011112 | 111110101012 |
Base 3 | 22020013 | 22020213 |
Base 4 | 1330334 | 1331114 |
Base 5 | 304445 | 310105 |
Base 6 | 131316 | 131416 |
Base 7 | 55547 | 55637 |
Base 8 | 37178 | 37258 |
Base 9 | 26619 | 26679 |
Base 10 | 199910 | 200510 |
Base 11 | 155811 | 156311 |
Base 12 | 11a712 | 11b112 |
Base 13 | baa13 | bb313 |
Base 14 | a2b14 | a3314 |
Base 15 | 8d415 | 8da15 |
Base 16 | 7cf16 | 7d516 |