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 189

  • The product of four distinct primes (bigger than 10) which differ only in their last digits (if it exists) always ends in 189
  • 189 is the smallest positive heptagonal number that is a half of a hexagonal number

Common Properties of 189

Composite
Deficient
Evil
Lucky
Odd
Ulam