Compare 209971 vs 209980
| Property | 209971 | 209980 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 4 |
| Prime factorization | 2099711 | 22 × 51 × 104991 |
| Prime factorization | 209971 | 2 × 2 × 5 × 10499 |
| Divisors count | 2 | 12 |
| Divisors | 1, 209971 | 1, 2, 4, 5, 10, 20, 10499, 20998, 41996, 52495, 104990, 209980 |
| Number of properties | 7 | 0 |
| Chen primes | 7854th | |
| Isolated primes | 14299th | |
| Long primes | 7034th | |
| Primes | 18804th | |
| Sexy primes (1st member) | 4465th | |
| Sexy prime triplets (1st member) | 900th | |
| Ulam primes | 1348th | |
| Roman numberals | ||
| Base 2 | 1100110100001100112 | 1100110100001111002 |
| Base 3 | 1012000002013 | 1012000010013 |
| Base 4 | 3031003034 | 3031003304 |
| Base 5 | 232043415 | 232044105 |
| Base 6 | 43000316 | 43000446 |
| Base 7 | 15331067 | 15331217 |
| Base 8 | 6320638 | 6320748 |
| Base 9 | 3500219 | 3500319 |
| Base 10 | 20997110 | 20998010 |
| Base 11 | 13383311 | 13384111 |
| Base 12 | a161712 | a162412 |
| Base 13 | 7475813 | 7476413 |
| Base 14 | 5673d14 | 5674814 |
| Base 15 | 4233115 | 4233a15 |
| Base 16 | 3343316 | 3343c16 |