Compare 641213 vs 641221
| Property | 641213 | 641221 |
|---|---|---|
| Type | prime | composite number |
| Unique factors | 1 | 3 |
| Total factors | 1 | 3 |
| Prime factorization | 6412131 | 71 × 471 × 19491 |
| Prime factorization | 641213 | 7 × 47 × 1949 |
| Divisors count | 2 | 8 |
| Divisors | 1, 641213 | 1, 7, 47, 329, 1949, 13643, 91603, 641221 |
| Number of properties | 4 | 0 |
| Additive primes | 20388th | |
| Isolated primes | 40888th | |
| Primes | 52165th | |
| Sophie germain primes | 5316th | |
| Roman numberals | ||
| Base 2 | 100111001000101111012 | 100111001000110001012 |
| Base 3 | 10121201201223 | 10121201202213 |
| Base 4 | 21302023314 | 21302030114 |
| Base 5 | 1310043235 | 1310043415 |
| Base 6 | 214243256 | 214243416 |
| Base 7 | 53102667 | 53103107 |
| Base 8 | 23442758 | 23443058 |
| Base 9 | 11765189 | 11765279 |
| Base 10 | 64121310 | 64122110 |
| Base 11 | 3a883111 | 3a883911 |
| Base 12 | 26b0a512 | 26b0b112 |
| Base 13 | 195b2113 | 195b2913 |
| Base 14 | 12996d14 | 12997714 |
| Base 15 | c9ec815 | c9ed115 |
| Base 16 | 9c8bd16 | 9c8c516 |