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 2421

  • 2421 = prime(2)2 + prime(4)4 + prime(2)2 + prime(1)1 and 2421 is the smallest number with this property (proved by Alexey Radul and David Wilson)

Common Properties of 2421

Composite
Deficient
Odd
Odious