Compare 639991 vs 639997
| Property | 639991 | 639997 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 3 | 1 |
| Prime factorization | 111 × 731 × 7971 | 6399971 |
| Prime factorization | 11 × 73 × 797 | 639997 |
| Divisors count | 8 | 2 |
| Divisors | 1, 11, 73, 797, 803, 8767, 58181, 639991 | 1, 639997 |
| Number of properties | 0 | 4 |
| Additive primes | 20349th | |
| Isolated primes | 40813th | |
| Lucky primes | 5977th | |
| Primes | 52074th | |
| Roman numberals | ||
| Base 2 | 100111000011111101112 | 100111000011111111012 |
| Base 3 | 10121112201013 | 10121112201213 |
| Base 4 | 21300333134 | 21300333314 |
| Base 5 | 1304344315 | 1304344425 |
| Base 6 | 214145316 | 214145416 |
| Base 7 | 53036027 | 53036117 |
| Base 8 | 23417678 | 23417758 |
| Base 9 | 11748119 | 11748179 |
| Base 10 | 63999110 | 63999710 |
| Base 11 | 3a792011 | 3a792611 |
| Base 12 | 26a44712 | 26a45112 |
| Base 13 | 1953c113 | 1953c713 |
| Base 14 | 12933914 | 12934114 |
| Base 15 | c996115 | c996715 |
| Base 16 | 9c3f716 | 9c3fd16 |