Compare 9931 vs 9940
| Property | 9931 | 9940 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 4 |
| Total factors | 1 | 5 |
| Prime factorization | 99311 | 22 × 51 × 71 × 711 |
| Prime factorization | 9931 | 2 × 2 × 5 × 7 × 71 |
| Divisors count | 2 | 24 |
| Divisors | 1, 9931 | 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1988, 2485, 4970, 9940 |
| Number of properties | 4 | 0 |
| Emirps | 238th | |
| Long primes | 465th | |
| Primes | 1225th | |
| Twin primes (2nd member) | 205th | |
| Roman numberals | ||
| Base 2 | 100110110010112 | 100110110101002 |
| Base 3 | 1111212113 | 1111220113 |
| Base 4 | 21230234 | 21231104 |
| Base 5 | 3042115 | 3042305 |
| Base 6 | 1135516 | 1140046 |
| Base 7 | 406457 | 406607 |
| Base 8 | 233138 | 233248 |
| Base 9 | 145549 | 145649 |
| Base 10 | 993110 | 994010 |
| Base 11 | 750911 | 751711 |
| Base 12 | 58b712 | 590412 |
| Base 13 | 469c13 | 46a813 |
| Base 14 | 389514 | 38a014 |
| Base 15 | 2e2115 | 2e2a15 |
| Base 16 | 26cb16 | 26d416 |