Compare 641213 vs 641218
| Property | 641213 | 641218 |
|---|---|---|
| Type | prime | semiprime |
| Unique factors | 1 | 2 |
| Total factors | 1 | 2 |
| Prime factorization | 6412131 | 21 × 3206091 |
| Prime factorization | 641213 | 2 × 320609 |
| Divisors count | 2 | 4 |
| Divisors | 1, 641213 | 1, 2, 320609, 641218 |
| Number of properties | 4 | 1 |
| Additive primes | 20388th | |
| Isolated primes | 40888th | |
| Primes | 52165th | |
| Semiprimes | 137394th | |
| Sophie germain primes | 5316th | |
| Roman numberals | ||
| Base 2 | 100111001000101111012 | 100111001000110000102 |
| Base 3 | 10121201201223 | 10121201202113 |
| Base 4 | 21302023314 | 21302030024 |
| Base 5 | 1310043235 | 1310043335 |
| Base 6 | 214243256 | 214243346 |
| Base 7 | 53102667 | 53103047 |
| Base 8 | 23442758 | 23443028 |
| Base 9 | 11765189 | 11765249 |
| Base 10 | 64121310 | 64121810 |
| Base 11 | 3a883111 | 3a883611 |
| Base 12 | 26b0a512 | 26b0aa12 |
| Base 13 | 195b2113 | 195b2613 |
| Base 14 | 12996d14 | 12997414 |
| Base 15 | c9ec815 | c9ecd15 |
| Base 16 | 9c8bd16 | 9c8c216 |