Compare 19987 vs 19997
Property | 19987 | 19997 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 3 | 1 |
Prime factorization | 111 × 231 × 791 | 199971 |
Prime factorization | 11 × 23 × 79 | 19997 |
Divisors count | 8 | 2 |
Divisors | 1, 11, 23, 79, 253, 869, 1817, 19987 | 1, 19997 |
Number of properties | 0 | 9 |
Chen primes | 1112th | |
Cousin primes (2nd member) | 344th | |
Happy primes | 377th | |
Harmonic primes | 821st | |
Isolated primes | 1579th | |
Primes | 2262nd | |
Prime triplets (3rd member) | 168th | |
Pythagorean primes | 1125th | |
Sexy primes (2nd member) | 693rd | |
Roman numberals | ||
Base 2 | 1001110000100112 | 1001110000111012 |
Base 3 | 10001020213 | 10001021223 |
Base 4 | 103201034 | 103201314 |
Base 5 | 11144225 | 11144425 |
Base 6 | 2323116 | 2323256 |
Base 7 | 1121627 | 1122057 |
Base 8 | 470238 | 470358 |
Base 9 | 303679 | 303789 |
Base 10 | 1998710 | 1999710 |
Base 11 | 1402011 | 1402a11 |
Base 12 | b69712 | b6a512 |
Base 13 | 913613 | 914313 |
Base 14 | 73d914 | 740514 |
Base 15 | 5dc715 | 5dd215 |
Base 16 | 4e1316 | 4e1d16 |