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 1320

  • 1320 is the smallest number such that φ(n) is a substring of n
  • 1320 is the smallest composite number n such that n - φ(n) is a non-trivial power of 10

Common Properties of 1320

Abundant
Composite
Even
Evil
Practical