Compare 199930 vs 199931
| Property | 199930 | 199931 | 
|---|---|---|
| Type | composite number | prime | 
| Unique factors | 3 | 1 | 
| Total factors | 3 | 1 | 
| Prime factorization | 21 × 51 × 199931 | 1999311 | 
| Prime factorization | 2 × 5 × 19993 | 199931 | 
| Divisors count | 8 | 2 | 
| Divisors | 1, 2, 5, 10, 19993, 39986, 99965, 199930 | 1, 199931 | 
| Number of properties | 0 | 6 | 
| Chen primes | 7524th | |
| Emirps | 4276th | |
| Harmonic primes | 6757th | |
| Long primes | 6736th | |
| Primes | 17980th | |
| Twin primes (1st member) | 2160th | |
| Roman numberals | ||
| Base 2 | 1100001100111110102 | 1100001100111110112 | 
| Base 3 | 1010110202113 | 1010110202123 | 
| Base 4 | 3003033224 | 3003033234 | 
| Base 5 | 223442105 | 223442115 | 
| Base 6 | 41413346 | 41413356 | 
| Base 7 | 14616137 | 14616147 | 
| Base 8 | 6063728 | 6063738 | 
| Base 9 | 3342249 | 3342259 | 
| Base 10 | 19993010 | 19993110 | 
| Base 11 | 12723511 | 12723611 | 
| Base 12 | 9784a12 | 9784b12 | 
| Base 13 | 7000313 | 7000413 | 
| Base 14 | 52c0a14 | 52c0b14 | 
| Base 15 | 3e38a15 | 3e38b15 | 
| Base 16 | 30cfa16 | 30cfb16 |