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 276

  • 276 is the smallest number whose aliquot sequence is not completely known
  • 276 is the smallest integer area of a Robbins pentagon: a cyclic pentagon with integer sides and integer area
  • 276 is the sum of the first 3 fifth powers
  • 276 is the smallest hexagonal number which is a sum of two other non-zero hexagonal numbers

Common Properties of 276

Abundant
Composite
Even
Odious
Practical
Triangular
Untouchable