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octodecillion

Advanced (C1/C2)

IPA: /ˌɒk.təʊ.dɪˈsɪl.jən/

KK: /ɑkˌtoʊˈdɛsɪljən/

noun
Definition

A very large number that is equal to 10 raised to the power of 57, or 1 followed by 57 zeros.


Example

In mathematics, an octodecillion is used to describe extremely large quantities.


Conversation
Sloth A
Did you know that an octodecillion is a real number?
Sloth B
Really? I never heard of it before today!
Sloth A
Yeah, it’s equal to 10 raised to the power of 57.
Sloth B
That's mind-blowing! Numbers can get so huge.

Synonyms & Antonyms
Synonyms
quindecillion
sexdecillion
septendecillion
Antonyms
none
none
none
Root Explanation

Octodecillion → It is formed from "octo-" (from Latin *octo*, meaning eight) and "decillion" (from Latin *decem*, meaning ten, combined with the suffix "-illion" which denotes a large number). The word "octodecillion" refers to the number represented by 10 to the power of 57, which is eight times ten raised to the power of ten.

Memory Tip

Think of 'eight' ('octo-') combined with 'ten' ('decillion') to remember that 'octodecillion' represents a number that is eight times ten raised to a large power.

Visually Confused Words
octillion
decillion
duodecillion
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