Compare 220931 vs 221219
| Property | 220931 | 221219 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2209311 | 2212191 |
| Prime factorization | 220931 | 221219 |
| Divisors count | 2 | 2 |
| Divisors | 1, 220931 | 1, 221219 |
| Number of properties | 6 | 7 |
| Additive primes | 7969th | 7977th |
| Chen primes | 8211th | |
| Harmonic primes | 7387th | 7398th |
| Isolated primes | 15037th | |
| Long primes | 7374th | 7380th |
| Primes | 19693rd | 19714th |
| Safe primes | 1272nd | |
| Sophie germain primes | 2236th | |
| Twin primes (1st member) | 2336th | |
| Roman numberals | ||
| Base 2 | 1101011111000000112 | 1101100000001000112 |
| Base 3 | 1020200011223 | 1020201100223 |
| Base 4 | 3113300034 | 3120002034 |
| Base 5 | 240322115 | 240343345 |
| Base 6 | 44224556 | 44240556 |
| Base 7 | 16100547 | 16106457 |
| Base 8 | 6574038 | 6600438 |
| Base 9 | 3660489 | 3664089 |
| Base 10 | 22093110 | 22121910 |
| Base 11 | 140a9711 | 14122911 |
| Base 12 | a7a2b12 | a802b12 |
| Base 13 | 7973913 | 798cb13 |
| Base 14 | 5a72b14 | 5a89514 |
| Base 15 | 456db15 | 4582e15 |
| Base 16 | 35f0316 | 3602316 |