Compare 981209 vs 981213
| Property | 981209 | 981213 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 9812091 | 31 × 3270711 |
| Prime factorization | 981209 | 3 × 327071 |
| Divisors count | 2 | 4 |
| Divisors | 1, 981209 | 1, 3, 327071, 981213 |
| Number of properties | 4 | 1 |
| Additive primes | 29598th | |
| Isolated primes | 61065th | |
| Primes | 77152nd | |
| Semiprimes | 206233rd | |
| Sophie germain primes | 7622nd | |
| Roman numberals | ||
| Base 2 | 111011111000110110012 | 111011111000110111012 |
| Base 3 | 12112112220023 | 12112112220203 |
| Base 4 | 32332031214 | 32332031314 |
| Base 5 | 2223443145 | 2223443235 |
| Base 6 | 330103456 | 330103536 |
| Base 7 | 112244457 | 112244527 |
| Base 8 | 35743318 | 35743358 |
| Base 9 | 17548629 | 17548669 |
| Base 10 | 98120910 | 98121310 |
| Base 11 | 61021911 | 61022211 |
| Base 12 | 3b39b512 | 3b39b912 |
| Base 13 | 2847c813 | 2847cc13 |
| Base 14 | 1b782514 | 1b782914 |
| Base 15 | 145ade15 | 145ae315 |
| Base 16 | ef8d916 | ef8dd16 |