Compare 661980 vs 661987
Property | 661980 | 661987 |
---|---|---|
Type | composite number | prime |
Unique factors | 6 | 1 |
Total factors | 7 | 1 |
Prime factorization | 22 × 31 × 51 × 111 × 171 × 591 | 6619871 |
Prime factorization | 2 × 2 × 3 × 5 × 11 × 17 × 59 | 661987 |
Divisors count | 96 | 2 |
Divisors | 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 17, 20, 22, 30, 33, 34, 44, 51, 55, 59, 60, 66, 68, 85, 102, 110, 118, 132, 165, 170, 177, 187, 204, 220, 236, 255, 295, 330, 340, 354, 374, 510, 561, 590, 649, 660, 708, 748, 885, 935, 1003, 1020, 1122, 1180, 1298, 1770, 1870, 1947, 2006, 2244, 2596, 2805, 3009, 3245, 3540, 3740, 3894, 4012, 5015, 5610, 6018, 6490, 7788, 9735, 10030, 11033, 11220, 12036, 12980, 15045, 19470, 20060, 22066, 30090, 33099, 38940, 44132, 55165, 60180, 66198, 110330, 132396, 165495, 220660, 330990, 661980 | 1, 661987 |
Number of properties | 0 | 5 |
Additive primes | 20970th | |
Chen primes | 21009th | |
Isolated primes | 42127th | |
Primes | 53716th | |
Sexy primes (1st member) | 11599th | |
Roman numberals | ||
Base 2 | 101000011001110111002 | 101000011001111000112 |
Base 3 | 10201220012103 | 10201220020013 |
Base 4 | 22012131304 | 22012132034 |
Base 5 | 1321404105 | 1321404225 |
Base 6 | 221044206 | 221044316 |
Base 7 | 54246547 | 54246647 |
Base 8 | 24147348 | 24147438 |
Base 9 | 12180539 | 12180619 |
Base 10 | 66198010 | 66198710 |
Base 11 | 4123a011 | 4123a711 |
Base 12 | 27b11012 | 27b11712 |
Base 13 | 1a240713 | 1a241113 |
Base 14 | 13336414 | 13336b14 |
Base 15 | d122015 | d122715 |
Base 16 | a19dc16 | a19e316 |