Compare 129 vs 138
| Property | 129 | 138 |
|---|---|---|
| Type | semiprime | composite number |
| Unique factors | 2 | 3 |
| Total factors | 2 | 3 |
| Prime factorization | 31 × 431 | 21 × 31 × 231 |
| Prime factorization | 3 × 43 | 2 × 3 × 23 |
| Divisors count | 4 | 8 |
| Divisors | 1, 3, 43, 129 | 1, 2, 3, 6, 23, 46, 69, 138 |
| Number of properties | 1 | 0 |
| Semiprimes | 43rd | |
| Roman numberals | CXXIX | CXXXVIII |
| Base 2 | 100000012 | 100010102 |
| Base 3 | 112103 | 120103 |
| Base 4 | 20014 | 20224 |
| Base 5 | 10045 | 10235 |
| Base 6 | 3336 | 3506 |
| Base 7 | 2437 | 2557 |
| Base 8 | 2018 | 2128 |
| Base 9 | 1539 | 1639 |
| Base 10 | 12910 | 13810 |
| Base 11 | 10811 | 11611 |
| Base 12 | a912 | b612 |
| Base 13 | 9c13 | a813 |
| Base 14 | 9314 | 9c14 |
| Base 15 | 8915 | 9315 |
| Base 16 | 8116 | 8a16 |