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 820

  • 820 can be represented as 1 + 9 + 92 + 93
  • 820 is the smallest number n such that there are 20 groups of order n

Common Properties of 820

Abundant
Apocalyptic power
Composite
Even
Happy
Odious
Practical
Triangular
Ulam