A quindecillion or octilliad[1] is equal to 1048 in America, or 1090 in France and Germany.[2]

In the long scale, 1048 is called octillion, which is commonly used in France and Germany.

This number is also called hexadekillion in Russ Rowlett's Greek-based naming system.[3]

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

Jonathan Bowers calls this number quadduecillion, and it's equal to using the quad-illion system.

Decimal Edit

  • 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - short scale
  • 1,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000,000 - long scale

Examples Edit

  • The Earth is composed of about 89 quindecillion molecules.[4]
  • The prefix tenaexa- multiplies by one quindecillion.
  • There are about 133 quindecillion atoms in the world.[5]

List of prefixed numbers derived from decillion Edit

Name Short scale Long scale
undecillion 1036 1066
duodecillion 1039 1072
tredecillion 1042 1078
quattuordecillion 1045 1084
quindecillion 1048 1090
sexdecillion 1051 1096
septendecillion 1054 10102
octodecillion 1057 10108
novemdecillion 1060 10114

Sources Edit

  2. Quindecillion at Wolfram MathWorld
  3. Names for Large Numbers
  4. Saibian, Sbiis. Larger numbers in science.
  5. List of atoms in the world.

See also Edit

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