Compare 142977 vs 142981
| Property | 142977 | 142981 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 31 × 476591 | 1429811 |
| Prime factorization | 3 × 47659 | 142981 |
| Divisors count | 4 | 2 |
| Divisors | 1, 3, 47659, 142977 | 1, 142981 |
| Number of properties | 1 | 6 |
| Happy primes | 2079th | |
| Harmonic primes | 4977th | |
| Long primes | 4944th | |
| Primes | 13265th | |
| Pythagorean primes | 6610th | |
| Semiprimes | 32845th | |
| Twin primes (2nd member) | 1636th | |
| Roman numberals | ||
| Base 2 | 1000101110100000012 | 1000101110100001012 |
| Base 3 | 210210101103 | 210210101213 |
| Base 4 | 2023220014 | 2023220114 |
| Base 5 | 140334025 | 140334115 |
| Base 6 | 30215336 | 30215416 |
| Base 7 | 11335627 | 11335667 |
| Base 8 | 4272018 | 4272058 |
| Base 9 | 2371139 | 2371179 |
| Base 10 | 14297710 | 14298110 |
| Base 11 | 9846a11 | 9847311 |
| Base 12 | 6a8a912 | 6a8b112 |
| Base 13 | 5010313 | 5010713 |
| Base 14 | 3a16914 | 3a16d14 |
| Base 15 | 2c56c15 | 2c57115 |
| Base 16 | 22e8116 | 22e8516 |