A quintillion is equal to 1018 in America, or 1030 in France and Germany.[1]
File:1 Quintillion Dollars.jpg

This number is also called hexillion in Russ Rowlett's Greek-based naming system.[2]

Donald Knuth calls this number attiad and octyriad, and it's equal to using the -yllion system.

Decimal Edit

Examples Edit

  • Niagara Falls takes up 210,000 years (about 30 times all recorded history) to use up a quintillion gallons of water.
  • A single drop of water contains 1.7 quintillion water molecules.
  • The distance from the Milky way to Andromeda is 2 million light years, which is about 11.73 quintillion miles.
  • The entire Earth contains about 326 quintillion gallons of water.[3]
  • There are about 43.3 quintillion ways to arrange a 3×3×3 Rubik's Cube.[4]
  • The SI prefix exa- multiplies by one quintillion.
  • The Earth's cross section has an area of about 1.275 quintillion square centimeters. [5]
  • By one estimate, there are 20 quintillion living animals on Earth.[6]
  • a tower of a quintillion one dollar bills would aproximately measure 1.099*10^20m in height.

As a banknote denomination Edit

Only the Hungarian pengő had banknotes with this number in the denomination.

Sources Edit

  1. Quintillion at Wolfram MathWorld
  2. Names for Large Numbers
  3. Template:Citation/CS1
  4. Notable Properties of Specific Numbers (page 18)
  5. Almost Infinite
  6. How Many Wild Animals Are There?

See also Edit

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