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 157

  • 157 is the smallest apocalyptic power
  • 157 is the smallest prime whose binary and ternary representations are also prime when read in decimal
  • 157 is the smallest prime which is the sum of ten consecutive composite numbers
  • 157 is the smallest emirp whose binary conversion remains an emirp when read in decimal

Common Properties of 157

Apocalyptic power
Deficient
Odd
Odious
Prime
Square-free