Compare 128121 vs 128129
| Property | 128121 | 128129 |
|---|---|---|
| Type | composite number | semiprime |
| Unique factors | 3 | 2 |
| Total factors | 3 | 2 |
| Prime factorization | 31 × 71 × 61011 | 171 × 75371 |
| Prime factorization | 3 × 7 × 6101 | 17 × 7537 |
| Divisors count | 8 | 4 |
| Divisors | 1, 3, 7, 21, 6101, 18303, 42707, 128121 | 1, 17, 7537, 128129 |
| Number of properties | 0 | 1 |
| Semiprimes | 29629th | |
| Roman numberals | ||
| Base 2 | 111110100011110012 | 111110100100000012 |
| Base 3 | 201112020203 | 201112021123 |
| Base 4 | 1331013214 | 1331020014 |
| Base 5 | 130444415 | 131000045 |
| Base 6 | 24250536 | 24251056 |
| Base 7 | 10423507 | 10423617 |
| Base 8 | 3721718 | 3722018 |
| Base 9 | 2146669 | 2146759 |
| Base 10 | 12812110 | 12812910 |
| Base 11 | 8829411 | 882a111 |
| Base 12 | 6218912 | 6219512 |
| Base 13 | 4641613 | 4642113 |
| Base 14 | 3499714 | 349a114 |
| Base 15 | 27e6615 | 27e6e15 |
| Base 16 | 1f47916 | 1f48116 |