Compare 639995 vs 639997
| Property | 639995 | 639997 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 51 × 311 × 41291 | 6399971 |
| Prime factorization | 5 × 31 × 4129 | 639997 |
| Divisors count | 8 | 2 |
| Divisors | 1, 5, 31, 155, 4129, 20645, 127999, 639995 | 1, 639997 |
| Number of properties | 0 | 4 |
| Additive primes | 20349th | |
| Isolated primes | 40813th | |
| Lucky primes | 5977th | |
| Primes | 52074th | |
| Roman numberals | ||
| Base 2 | 100111000011111110112 | 100111000011111111012 |
| Base 3 | 10121112201123 | 10121112201213 |
| Base 4 | 21300333234 | 21300333314 |
| Base 5 | 1304344405 | 1304344425 |
| Base 6 | 214145356 | 214145416 |
| Base 7 | 53036067 | 53036117 |
| Base 8 | 23417738 | 23417758 |
| Base 9 | 11748159 | 11748179 |
| Base 10 | 63999510 | 63999710 |
| Base 11 | 3a792411 | 3a792611 |
| Base 12 | 26a44b12 | 26a45112 |
| Base 13 | 1953c513 | 1953c713 |
| Base 14 | 12933d14 | 12934114 |
| Base 15 | c996515 | c996715 |
| Base 16 | 9c3fb16 | 9c3fd16 |