Compare 201221 vs 201230
| Property | 201221 | 201230 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 311 × 64911 | 21 × 51 × 201231 |
| Prime factorization | 31 × 6491 | 2 × 5 × 20123 |
| Divisors count | 4 | 8 |
| Divisors | 1, 31, 6491, 201221 | 1, 2, 5, 10, 20123, 40246, 100615, 201230 |
| Number of properties | 1 | 0 |
| Semiprimes | 45508th | |
| Roman numberals | ||
| Base 2 | 1100010010000001012 | 1100010010000011102 |
| Base 3 | 1010200001223 | 1010200002223 |
| Base 4 | 3010200114 | 3010200324 |
| Base 5 | 224143415 | 224144105 |
| Base 6 | 41513256 | 41513426 |
| Base 7 | 14654367 | 14654517 |
| Base 8 | 6110058 | 6110168 |
| Base 9 | 3360189 | 3360289 |
| Base 10 | 20122110 | 20123010 |
| Base 11 | 1281a911 | 12820711 |
| Base 12 | 9854512 | 9855212 |
| Base 13 | 7078713 | 7079313 |
| Base 14 | 5348d14 | 5349814 |
| Base 15 | 3e94b15 | 3e95515 |
| Base 16 | 3120516 | 3120e16 |