Compare 1942 vs 1981
| Property | 1942 | 1981 |
|---|---|---|
| Type | semiprime | semiprime |
| Unique factors | 2 | 2 |
| Total factors | 2 | 2 |
| Prime factorization | 21 × 9711 | 71 × 2831 |
| Prime factorization | 2 × 971 | 7 × 283 |
| Divisors count | 4 | 4 |
| Divisors | 1, 2, 971, 1942 | 1, 7, 283, 1981 |
| Number of properties | 1 | 1 |
| Semiprimes | 560th | 572nd |
| Roman numberals | MCMXLII | MCMLXXXI |
| Base 2 | 111100101102 | 111101111012 |
| Base 3 | 21222213 | 22011013 |
| Base 4 | 1321124 | 1323314 |
| Base 5 | 302325 | 304115 |
| Base 6 | 125546 | 131016 |
| Base 7 | 54437 | 55307 |
| Base 8 | 36268 | 36758 |
| Base 9 | 25879 | 26419 |
| Base 10 | 194210 | 198110 |
| Base 11 | 150611 | 154111 |
| Base 12 | 115a12 | 119112 |
| Base 13 | b6513 | b9513 |
| Base 14 | 9ca14 | a1714 |
| Base 15 | 89715 | 8c115 |
| Base 16 | 79616 | 7bd16 |