Compare 101920 vs 101921
| Property | 101920 | 101921 |
|---|---|---|
| Type | composite number | prime |
| Unique factors | 4 | 1 |
| Total factors | 9 | 1 |
| Prime factorization | 25 × 51 × 72 × 131 | 1019211 |
| Prime factorization | 2 × 2 × 2 × 2 × 2 × 5 × 7 × 7 × 13 | 101921 |
| Divisors count | 72 | 2 |
| Divisors | 1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 160, 182, 196, 208, 224, 245, 260, 280, 364, 392, 416, 455, 490, 520, 560, 637, 728, 784, 910, 980, 1040, 1120, 1274, 1456, 1568, 1820, 1960, 2080, 2548, 2912, 3185, 3640, 3920, 5096, 6370, 7280, 7840, 10192, 12740, 14560, 20384, 25480, 50960, 101920 | 1, 101921 |
| Number of properties | 0 | 7 |
| Chen primes | 4295th | |
| Cousin primes (2nd member) | 1236th | |
| Harmonic primes | 3690th | |
| Isolated primes | 7282nd | |
| Primes | 9759th | |
| Pythagorean primes | 4870th | |
| Sophie germain primes | 1190th | |
| Roman numberals | ||
| Base 2 | 110001110001000002 | 110001110001000012 |
| Base 3 | 120112102113 | 120112102123 |
| Base 4 | 1203202004 | 1203202014 |
| Base 5 | 112301405 | 112301415 |
| Base 6 | 21035046 | 21035056 |
| Base 7 | 6031007 | 6031017 |
| Base 8 | 3070408 | 3070418 |
| Base 9 | 1647249 | 1647259 |
| Base 10 | 10192010 | 10192110 |
| Base 11 | 6a63511 | 6a63611 |
| Base 12 | 4ab9412 | 4ab9512 |
| Base 13 | 3751013 | 3751113 |
| Base 14 | 2920014 | 2920114 |
| Base 15 | 202ea15 | 202eb15 |
| Base 16 | 18e2016 | 18e2116 |