Compare 1001981 vs 1001987
| Property | 1001981 | 1001987 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 10019811 | 71 × 1431411 |
| Prime factorization | 1001981 | 7 × 143141 |
| Divisors count | 2 | 4 |
| Divisors | 1, 1001981 | 1, 7, 143141, 1001987 |
| Number of properties | 5 | 1 |
| Chen primes | 30000th | |
| Cousin primes (2nd member) | 8162nd | |
| Primes | 78648th | |
| Prime triplets (2nd member) | 2842nd | |
| Semiprimes | 210429th | |
| Twin primes (1st member) | 8186th | |
| Roman numberals | ||
| Base 2 | 111101001001111111012 | 111101001010000000112 |
| Base 3 | 12122201101023 | 12122201101223 |
| Base 4 | 33102133314 | 33102200034 |
| Base 5 | 2240304115 | 2240304225 |
| Base 6 | 332504456 | 332504556 |
| Base 7 | 113421417 | 113421507 |
| Base 8 | 36447758 | 36450038 |
| Base 9 | 17864129 | 17864189 |
| Base 10 | 100198110 | 100198710 |
| Base 11 | 62489211 | 62489811 |
| Base 12 | 403a2512 | 403a2b12 |
| Base 13 | 2910b613 | 2910bc13 |
| Base 14 | 1c122114 | 1c122714 |
| Base 15 | 14bd3b15 | 14bd4215 |
| Base 16 | f49fd16 | f4a0316 |