Compare 1921 vs 1922
| Property | 1921 | 1922 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 2 |
| Total factors | 2 | 3 |
| Prime factorization | 171 × 1131 | 21 × 312 |
| Prime factorization | 17 × 113 | 2 × 31 × 31 |
| Divisors count | 4 | 6 |
| Divisors | 1, 17, 113, 1921 | 1, 2, 31, 62, 961, 1922 |
| Number of properties | 1 | 0 |
| Semiprimes | 552nd | |
| Roman numberals | MCMXXI | MCMXXII |
| Base 2 | 111100000012 | 111100000102 |
| Base 3 | 21220113 | 21220123 |
| Base 4 | 1320014 | 1320024 |
| Base 5 | 301415 | 301425 |
| Base 6 | 125216 | 125226 |
| Base 7 | 54137 | 54147 |
| Base 8 | 36018 | 36028 |
| Base 9 | 25649 | 25659 |
| Base 10 | 192110 | 192210 |
| Base 11 | 149711 | 149811 |
| Base 12 | 114112 | 114212 |
| Base 13 | b4a13 | b4b13 |
| Base 14 | 9b314 | 9b414 |
| Base 15 | 88115 | 88215 |
| Base 16 | 78116 | 78216 |