Factorization
2164 = 2 × 2 × 541
2164 has 6 divisors: 1, 2, 4, 541, 1082, 2164
Sum of all divisors other than 2164:
1630
Sums & differences
Sum of 2 squares: 2164 = 422 + 202
Difference of 2 squares: 2164 = 5422 - 5402
Goldbach conjecture: 2164 = 2161 + 3 = 2153 + 11 = 2141 + 23 = 2111 + 53 = 2081 + 83 = 2063 + 101 = 2027 + 137 = 1997 + 167 = 1973 + 191 = 1931 + 233 = . . . (only the first 10 pairs are shown)
