Compare 991424 vs 991427
| Property | 991424 | 991427 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 3 | 1 |
| Total factors | 8 | 1 |
| Prime factorization | 26 × 71 × 22131 | 9914271 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 2 × 7 × 2213 | 991427 |
| Divisors count | 28 | 2 |
| Divisors | 1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 2213, 4426, 8852, 15491, 17704, 30982, 35408, 61964, 70816, 123928, 141632, 247856, 495712, 991424 | 1, 991427 |
| Number of properties | 0 | 4 |
| Chen primes | 29733rd | |
| Primes | 77879th | |
| Safe primes | 4295th | |
| Twin primes (1st member) | 8110th | |
| Roman numberals | ||
| Base 2 | 111100100000110000002 | 111100100000110000112 |
| Base 3 | 12121002221023 | 12121002221123 |
| Base 4 | 33020030004 | 33020030034 |
| Base 5 | 2232111445 | 2232112025 |
| Base 6 | 331255326 | 331255356 |
| Base 7 | 112663107 | 112663137 |
| Base 8 | 36203008 | 36203038 |
| Base 9 | 17708729 | 17708759 |
| Base 10 | 99142410 | 99142710 |
| Base 11 | 61796511 | 61796811 |
| Base 12 | 3b98a812 | 3b98ab12 |
| Base 13 | 28935513 | 28935813 |
| Base 14 | 1bb44014 | 1bb44314 |
| Base 15 | 148b4e15 | 148b5215 |
| Base 16 | f20c016 | f20c316 |