Compare 201212 vs 201221
| Property | 201212 | 201221 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 4 | 2 |
| Total factors | 5 | 2 |
| Prime factorization | 22 × 111 × 171 × 2691 | 311 × 64911 |
| Prime factorization | 2 × 2 × 11 × 17 × 269 | 31 × 6491 |
| Divisors count | 24 | 4 |
| Divisors | 1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 269, 374, 538, 748, 1076, 2959, 4573, 5918, 9146, 11836, 18292, 50303, 100606, 201212 | 1, 31, 6491, 201221 |
| Number of properties | 0 | 1 |
| Semiprimes | 45508th | |
| Roman numberals | ||
| Base 2 | 1100010001111111002 | 1100010010000001012 |
| Base 3 | 1010200000223 | 1010200001223 |
| Base 4 | 3010133304 | 3010200114 |
| Base 5 | 224143225 | 224143415 |
| Base 6 | 41513126 | 41513256 |
| Base 7 | 14654247 | 14654367 |
| Base 8 | 6107748 | 6110058 |
| Base 9 | 3360089 | 3360189 |
| Base 10 | 20121210 | 20122110 |
| Base 11 | 1281a011 | 1281a911 |
| Base 12 | 9853812 | 9854512 |
| Base 13 | 7077b13 | 7078713 |
| Base 14 | 5348414 | 5348d14 |
| Base 15 | 3e94215 | 3e94b15 |
| Base 16 | 311fc16 | 3120516 |