Compare 91990 vs 91997
Property | 91990 | 91997 |
---|---|---|
Type | composite number | prime |
Unique factors | 3 | 1 |
Total factors | 3 | 1 |
Prime factorization | 21 × 51 × 91991 | 919971 |
Prime factorization | 2 × 5 × 9199 | 91997 |
Divisors count | 8 | 2 |
Divisors | 1, 2, 5, 10, 9199, 18398, 45995, 91990 | 1, 91997 |
Number of properties | 0 | 9 |
Chen primes | 3952nd | |
Happy primes | 1363rd | |
Isolated primes | 6616th | |
Left-truncatable primes | 320th | |
Primes | 8887th | |
Pythagorean primes | 4432nd | |
Sexy primes (1st member) | 2285th | |
Sexy prime triplets (1st member) | 507th | |
Super primes | 1107th | |
Roman numberals | ||
Base 2 | 101100111010101102 | 101100111010111012 |
Base 3 | 112000120013 | 112000120223 |
Base 4 | 1121311124 | 1121311314 |
Base 5 | 104204305 | 104204425 |
Base 6 | 15455146 | 15455256 |
Base 7 | 5321237 | 5321337 |
Base 8 | 2635268 | 2635358 |
Base 9 | 1501619 | 1501689 |
Base 10 | 9199010 | 9199710 |
Base 11 | 6312811 | 6313411 |
Base 12 | 4529a12 | 452a512 |
Base 13 | 32b4213 | 32b4913 |
Base 14 | 2574a14 | 2575314 |
Base 15 | 1c3ca15 | 1c3d215 |
Base 16 | 1675616 | 1675d16 |