Compare 1998 vs 2003
| Property | 1998 | 2003 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 5 | 1 |
| Prime factorization | 21 × 33 × 371 | 20031 |
| Prime factorization | 2 × 3 × 3 × 3 × 37 | 2003 |
| Divisors count | 16 | 2 |
| Divisors | 1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998 | 1, 2003 |
| Number of properties | 0 | 9 |
| Additive primes | 157th | |
| Chen primes | 186th | |
| Cousin primes (2nd member) | 65th | |
| Happy primes | 55th | |
| Isolated primes | 183rd | |
| Primes | 304th | |
| Prime triplets (3rd member) | 50th | |
| Sexy primes (2nd member) | 129th | |
| Sophie germain primes | 61st | |
| Roman numberals | MCMXCVIII | MMIII |
| Base 2 | 111110011102 | 111110100112 |
| Base 3 | 22020003 | 22020123 |
| Base 4 | 1330324 | 1331034 |
| Base 5 | 304435 | 310035 |
| Base 6 | 131306 | 131356 |
| Base 7 | 55537 | 55617 |
| Base 8 | 37168 | 37238 |
| Base 9 | 26609 | 26659 |
| Base 10 | 199810 | 200310 |
| Base 11 | 155711 | 156111 |
| Base 12 | 11a612 | 11ab12 |
| Base 13 | ba913 | bb113 |
| Base 14 | a2a14 | a3114 |
| Base 15 | 8d315 | 8d815 |
| Base 16 | 7ce16 | 7d316 |