Compare 2021 vs 2027
| Property | 2021 | 2027 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 431 × 471 | 20271 |
| Prime factorization | 43 × 47 | 2027 |
| Divisors count | 4 | 2 |
| Divisors | 1, 43, 47, 2021 | 1, 2027 |
| Number of properties | 1 | 7 |
| Additive primes | 158th | |
| Chen primes | 188th | |
| Harmonic primes | 114th | |
| Primes | 307th | |
| Safe primes | 38th | |
| Semiprimes | 581st | |
| Super primes | 63rd | |
| Twin primes (1st member) | 62nd | |
| Roman numberals | MMXXI | MMXXVII |
| Base 2 | 111111001012 | 111111010112 |
| Base 3 | 22022123 | 22100023 |
| Base 4 | 1332114 | 1332234 |
| Base 5 | 310415 | 311025 |
| Base 6 | 132056 | 132156 |
| Base 7 | 56157 | 56247 |
| Base 8 | 37458 | 37538 |
| Base 9 | 26859 | 27029 |
| Base 10 | 202110 | 202710 |
| Base 11 | 157811 | 158311 |
| Base 12 | 120512 | 120b12 |
| Base 13 | bc613 | bcc13 |
| Base 14 | a4514 | a4b14 |
| Base 15 | 8eb15 | 90215 |
| Base 16 | 7e516 | 7eb16 |