Compare 640663 vs 641143
| Property | 640663 | 641143 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 6406631 | 6411431 |
| Prime factorization | 640663 | 641143 |
| Divisors count | 2 | 2 |
| Divisors | 1, 640663 | 1, 641143 |
| Number of properties | 6 | 5 |
| Additive primes | 20387th | |
| Cousin primes (1st member) | 5636th | |
| Happy primes | 7419th | 7423rd |
| Isolated primes | 40851st | 40884th |
| Lucky primes | 5984th | |
| Primes | 52124th | 52161st |
| Prime triplets (1st member) | 2063rd | |
| Sexy primes (1st member) | 11293rd | |
| Roman numberals | ||
| Base 2 | 100111000110100101112 | 100111001000011101112 |
| Base 3 | 10121122110213 | 10121201110013 |
| Base 4 | 21301221134 | 21302013134 |
| Base 5 | 1310001235 | 1310040335 |
| Base 6 | 214220116 | 214241316 |
| Base 7 | 53055527 | 53101367 |
| Base 8 | 23432278 | 23441678 |
| Base 9 | 11757379 | 11764319 |
| Base 10 | 64066310 | 64114310 |
| Base 11 | 3a838111 | 3a877811 |
| Base 12 | 26a90712 | 26b04712 |
| Base 13 | 1957ba13 | 195a9913 |
| Base 14 | 12969914 | 12991d14 |
| Base 15 | c9c5d15 | c9e7d15 |
| Base 16 | 9c69716 | 9c87716 |