Compare 1891 vs 1900
| Property | 1891 | 1900 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 5 |
| Prime factorization | 311 × 611 | 22 × 52 × 191 |
| Prime factorization | 31 × 61 | 2 × 2 × 5 × 5 × 19 |
| Divisors count | 4 | 18 |
| Divisors | 1, 31, 61, 1891 | 1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 190, 380, 475, 950, 1900 |
| Number of properties | 1 | 0 |
| Semiprimes | 542nd | |
| Roman numberals | MDCCCXCI | MCM |
| Base 2 | 111011000112 | 111011011002 |
| Base 3 | 21210013 | 21211013 |
| Base 4 | 1312034 | 1312304 |
| Base 5 | 300315 | 301005 |
| Base 6 | 124316 | 124446 |
| Base 7 | 53417 | 53537 |
| Base 8 | 35438 | 35548 |
| Base 9 | 25319 | 25419 |
| Base 10 | 189110 | 190010 |
| Base 11 | 146a11 | 147811 |
| Base 12 | 111712 | 112412 |
| Base 13 | b2613 | b3213 |
| Base 14 | 99114 | 99a14 |
| Base 15 | 86115 | 86a15 |
| Base 16 | 76316 | 76c16 |