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A duodecillion is equal to 1039 in America, or 1072 in France and Germany.[1]

In his novel Postsingular, Rudy Rucker jokingly used the term umptisqiuddlyzillion to refer to the American value of this number.[2]

In the long scale, 1039 is called sextilliard, which is commonly used in France and Germany.

This number is also called trisdekillion in Russ Rowlett's Greek-based naming system,[3] and doedecillion by Jonathan Bowers.[4]

Aarex Tiaokhiao gave the name trecillion, referring to the value of this number.[5]

Decimal Edit

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

Examples Edit

  • The great lakes contain roughly 52.92 duodecillion water molecules[6]
  • The prefix tenagiga- multiplies by one duodecillion.

Sources Edit

  1. Duodecillion at Wolfram MathWorld
  2. [1]
  3. Names for Large Numbers
  4. Bowers, Jonathan. -Illion numbers
  5. Aarex Tiaokhiao's illion numbers
  6. Saibian, Sbiis. Larger numbers in science.

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


See also Edit

Main article: -illion
1–9: million · billion · trillion · quadr · quint · sext · sept · oct · non
10–19: decillion · undec · duodec · tredec · quattuordec · quindec · sexdec · septendec · octodec · novemdec
20–29: vigintillion · unvigint · duovigint · trevigint · quattuorvigint · quinvigint · sexvigint · septenvigint · octovigint · novemvigint
30–39: trigintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
40–49: quadragintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
50–59: quinquagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
60–69: sexagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
70–79: septuagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
80–89: octogintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
90–99: nonagintillion (un- · duo- · tre- · quattuor- · quin- · sex- · septen- · octo- · novem-)
100–900: centillion · primo-vigesimo-cent · ducent · trecent · duotrigintatrecent · quadringent · quingent · sescent · septuagintisescent · septingent · octingent · nongent
1000–1024: millillion · dumill · trimill · quadrimill · quinmill · sexmill · septimill · octimill · nonimill · myr · centimill · micr · nan · pic · femt · att · zept · yoct

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