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 1540

  • 1540 is the smallest number which when multiplied by any repunit prime gives a Smith number

Rare Properties of 1540

Tetrahedral (Pyramidal)

Common Properties of 1540

Abundant
Composite
Even
Odious
Practical
Triangular