Compare 1945 vs 1955
| Property | 1945 | 1955 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 51 × 3891 | 51 × 171 × 231 |
| Prime factorization | 5 × 389 | 5 × 17 × 23 |
| Divisors count | 4 | 8 |
| Divisors | 1, 5, 389, 1945 | 1, 5, 17, 23, 85, 115, 391, 1955 |
| Number of properties | 1 | 0 |
| Semiprimes | 562nd | |
| Roman numberals | MCMXLV | MCMLV |
| Base 2 | 111100110012 | 111101000112 |
| Base 3 | 22000013 | 22001023 |
| Base 4 | 1321214 | 1322034 |
| Base 5 | 302405 | 303105 |
| Base 6 | 130016 | 130156 |
| Base 7 | 54467 | 54627 |
| Base 8 | 36318 | 36438 |
| Base 9 | 26019 | 26129 |
| Base 10 | 194510 | 195510 |
| Base 11 | 150911 | 151811 |
| Base 12 | 116112 | 116b12 |
| Base 13 | b6813 | b7513 |
| Base 14 | 9cd14 | 9d914 |
| Base 15 | 89a15 | 8a515 |
| Base 16 | 79916 | 7a316 |