Compare 2013 vs 2017
| Property | 2013 | 2017 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 31 × 111 × 611 | 20171 |
| Prime factorization | 3 × 11 × 61 | 2017 |
| Divisors count | 8 | 2 |
| Divisors | 1, 3, 11, 33, 61, 183, 671, 2013 | 1, 2017 |
| Number of properties | 0 | 7 |
| Chen primes | 187th | |
| Isolated primes | 185th | |
| Long primes | 117th | |
| Primes | 306th | |
| Pythagorean primes | 148th | |
| Sexy primes (2nd member) | 130th | |
| Solinas primes | 54th | |
| Roman numberals | MMXIII | MMXVII |
| Base 2 | 111110111012 | 111111000012 |
| Base 3 | 22021203 | 22022013 |
| Base 4 | 1331314 | 1332014 |
| Base 5 | 310235 | 310325 |
| Base 6 | 131536 | 132016 |
| Base 7 | 56047 | 56117 |
| Base 8 | 37358 | 37418 |
| Base 9 | 26769 | 26819 |
| Base 10 | 201310 | 201710 |
| Base 11 | 157011 | 157411 |
| Base 12 | 11b912 | 120112 |
| Base 13 | bbb13 | bc213 |
| Base 14 | a3b14 | a4114 |
| Base 15 | 8e315 | 8e715 |
| Base 16 | 7dd16 | 7e116 |