Compare 153949 vs 153961
| Property | 153949 | 153961 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 1539491 | 291 × 53091 |
| Prime factorization | 153949 | 29 × 5309 |
| Divisors count | 2 | 4 |
| Divisors | 1, 153949 | 1, 29, 5309, 153961 |
| Number of properties | 6 | 1 |
| Additive primes | 5839th | |
| Cousin primes (1st member) | 1724th | |
| Primes | 14185th | |
| Prime triplets (2nd member) | 691st | |
| Pythagorean primes | 7078th | |
| Semiprimes | 35231st | |
| Twin primes (2nd member) | 1744th | |
| Roman numberals | ||
| Base 2 | 1001011001010111012 | 1001011001011010012 |
| Base 3 | 212110112113 | 212110120213 |
| Base 4 | 2112111314 | 2112112214 |
| Base 5 | 144112445 | 144113215 |
| Base 6 | 31444216 | 31444416 |
| Base 7 | 12105557 | 12106037 |
| Base 8 | 4545358 | 4545518 |
| Base 9 | 2541549 | 2541679 |
| Base 10 | 15394910 | 15396110 |
| Base 11 | a573411 | a574511 |
| Base 12 | 7511112 | 7512112 |
| Base 13 | 550c313 | 5510213 |
| Base 14 | 4016514 | 4017314 |
| Base 15 | 3093415 | 3094115 |
| Base 16 | 2595d16 | 2596916 |