Compare 2021 vs 2023
| Property | 2021 | 2023 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 431 × 471 | 71 × 172 |
| Prime factorization | 43 × 47 | 7 × 17 × 17 |
| Divisors count | 4 | 6 |
| Divisors | 1, 43, 47, 2021 | 1, 7, 17, 119, 289, 2023 |
| Number of properties | 1 | 0 |
| Semiprimes | 581st | |
| Roman numberals | MMXXI | MMXXIII |
| Base 2 | 111111001012 | 111111001112 |
| Base 3 | 22022123 | 22022213 |
| Base 4 | 1332114 | 1332134 |
| Base 5 | 310415 | 310435 |
| Base 6 | 132056 | 132116 |
| Base 7 | 56157 | 56207 |
| Base 8 | 37458 | 37478 |
| Base 9 | 26859 | 26879 |
| Base 10 | 202110 | 202310 |
| Base 11 | 157811 | 157a11 |
| Base 12 | 120512 | 120712 |
| Base 13 | bc613 | bc813 |
| Base 14 | a4514 | a4714 |
| Base 15 | 8eb15 | 8ed15 |
| Base 16 | 7e516 | 7e716 |