Number Gossip

(Enter a number and I'll tell you everything you wanted to know about it but were afraid to ask.)

Unique Properties of 1680

  • 1680 is the smallest number with 40 divisors
  • 1680 is the smallest area of a triangle with sides, area, and two medians being integers
  • 1680 is the smallest number n such that 2n - φ(x) = σ(x)/2

Common Properties of 1680

Abundant
Composite
Even
Evil
Practical
Untouchable