Compare 2019 vs 2021
| Property | 2019 | 2021 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 31 × 6731 | 431 × 471 |
| Prime factorization | 3 × 673 | 43 × 47 |
| Divisors count | 4 | 4 |
| Divisors | 1, 3, 673, 2019 | 1, 43, 47, 2021 |
| Number of properties | 1 | 1 |
| Semiprimes | 580th | 581st |
| Roman numberals | MMXIX | MMXXI |
| Base 2 | 111111000112 | 111111001012 |
| Base 3 | 22022103 | 22022123 |
| Base 4 | 1332034 | 1332114 |
| Base 5 | 310345 | 310415 |
| Base 6 | 132036 | 132056 |
| Base 7 | 56137 | 56157 |
| Base 8 | 37438 | 37458 |
| Base 9 | 26839 | 26859 |
| Base 10 | 201910 | 202110 |
| Base 11 | 157611 | 157811 |
| Base 12 | 120312 | 120512 |
| Base 13 | bc413 | bc613 |
| Base 14 | a4314 | a4514 |
| Base 15 | 8e915 | 8eb15 |
| Base 16 | 7e316 | 7e516 |