Number Gossip

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Unique Properties of 38

  • 38 is the magic constant in the only possible magic hexagon (which utilizes all the natural integers up to and including 19)
  • XXXVIII (=38) is lexicographically the last string which represents a valid Roman numeral
  • 38 is the largest even number which cannot be written as the sum of two odd composite numbers

Common Properties of 38

Composite
Deficient
Even
Odious
Square-free
Ulam