HistorianBook.com project of numbers.

18 information.

18
Change language18 in English words
eighteen
XVIII
even
Square root
4.2426406871193
Binary number
10010
18 in Fibonacci Sequence
No
This number consist from
2 digits
Sum of 2 digits (1+8)
9
Composite number (opposite to prime number).
18 on wikipedia Google 18 #18 on instagram #18 on twitter Reverse 18 Shuffle 18
Donations made by Jewish people often contain the number 18 (like $10.18), or are multiples of 18 (like $108.00). It's called “giving Chai”.
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