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 16

  • 16 is the number of vertices of a tesseract
  • 16 is the only number of the form xy=yx with different x and y
  • 16 is the smallest prime power of a prime power of a prime
  • 16 is the base of the hexadecimal number system, which is used extensively in computer science
  • 16 is the smallest short leg in a primitive Pythagorean triangle whose three side lengths are composite integers
  • 16 is the smallest number which is the sum of two distinct odd primes in two ways: 16 = 3 + 13 = 5 + 11

Rare Properties of 16

Power of 2
Square

Common Properties of 16

Composite
Deficient
Even
Lazy caterer
Odious
Powerful
Practical
Ulam