Compare 2001 vs 2003
| Property | 2001 | 2003 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 231 × 291 | 20031 |
| Prime factorization | 3 × 23 × 29 | 2003 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 23, 29, 69, 87, 667, 2001 | 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 | MMI | MMIII |
| Base 2 | 111110100012 | 111110100112 |
| Base 3 | 22020103 | 22020123 |
| Base 4 | 1331014 | 1331034 |
| Base 5 | 310015 | 310035 |
| Base 6 | 131336 | 131356 |
| Base 7 | 55567 | 55617 |
| Base 8 | 37218 | 37238 |
| Base 9 | 26639 | 26659 |
| Base 10 | 200110 | 200310 |
| Base 11 | 155a11 | 156111 |
| Base 12 | 11a912 | 11ab12 |
| Base 13 | bac13 | bb113 |
| Base 14 | a2d14 | a3114 |
| Base 15 | 8d615 | 8d815 |
| Base 16 | 7d116 | 7d316 |