Compare 669946 vs 669947
| Property | 669946 | 669947 |
|---|---|---|
| Type | semiprime | prime |
| Unique factors | 2 | 1 |
| Total factors | 2 | 1 |
| Prime factorization | 21 × 3349731 | 6699471 |
| Prime factorization | 2 × 334973 | 669947 |
| Divisors count | 4 | 2 |
| Divisors | 1, 2, 334973, 669946 | 1, 669947 |
| Number of properties | 1 | 6 |
| Additive primes | 21201st | |
| Chen primes | 21225th | |
| Cousin primes (2nd member) | 5858th | |
| Isolated primes | 42586th | |
| Primes | 54307th | |
| Safe primes | 3137th | |
| Semiprimes | 143279th | |
| Roman numberals | ||
| Base 2 | 101000111000111110102 | 101000111000111110112 |
| Base 3 | 10210002222113 | 10210002222123 |
| Base 4 | 22032033224 | 22032033234 |
| Base 5 | 1324142415 | 1324142425 |
| Base 6 | 222053346 | 222053356 |
| Base 7 | 54601247 | 54601257 |
| Base 8 | 24343728 | 24343738 |
| Base 9 | 12308849 | 12308859 |
| Base 10 | 66994610 | 66994710 |
| Base 11 | 41838211 | 41838311 |
| Base 12 | 28384a12 | 28384b12 |
| Base 13 | 1a5c2413 | 1a5c2513 |
| Base 14 | 13621414 | 13621514 |
| Base 15 | d378115 | d378215 |
| Base 16 | a38fa16 | a38fb16 |