Number of the day: 164193

Properties of the number 164193:

164193 = 3 × 229 × 239 is a sphenic number and squarefree.
164193 has 3 distinct prime factors, 8 divisors, 11 antidivisors and 108528 totatives.
164193 = 82097² - 82096² = 27367² - 27364² = 473² - 244² = 463² - 224² is the difference of 2 nonnegative squares in 4 ways.
164193 is the difference of 2 positive pentagonal numbers in 1 way.
164193 = 4² + 31² + 404² is the sum of 3 positive squares.
164193² = 43020² + 158457² is the sum of 2 positive squares in 1 way.
164193² is the sum of 3 positive squares.
164193 is a proper divisor of 1697⁴² - 1.
164193 = '1641' + '93' is the concatenation of 2 emirpimes.