Compare 2011 vs 2013
| Property | 2011 | 2013 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 20111 | 31 × 111 × 611 |
| Prime factorization | 2011 | 3 × 11 × 61 |
| Divisors count | 2 | 8 |
| Divisors | 1, 2011 | 1, 3, 11, 33, 61, 183, 671, 2013 |
| Number of properties | 4 | 0 |
| Harmonic primes | 113th | |
| Isolated primes | 184th | |
| Primes | 305th | |
| Sexy primes (1st member) | 130th | |
| Roman numberals | MMXI | MMXIII |
| Base 2 | 111110110112 | 111110111012 |
| Base 3 | 22021113 | 22021203 |
| Base 4 | 1331234 | 1331314 |
| Base 5 | 310215 | 310235 |
| Base 6 | 131516 | 131536 |
| Base 7 | 56027 | 56047 |
| Base 8 | 37338 | 37358 |
| Base 9 | 26749 | 26769 |
| Base 10 | 201110 | 201310 |
| Base 11 | 156911 | 157011 |
| Base 12 | 11b712 | 11b912 |
| Base 13 | bb913 | bbb13 |
| Base 14 | a3914 | a3b14 |
| Base 15 | 8e115 | 8e315 |
| Base 16 | 7db16 | 7dd16 |