Thirty (30) is a positive integer one more than 29 and one less than 31. Its ordinal form is written "30th" or "thirtieth".

Properties Edit

30 is an even composite number and equal to five primorial.

30 is equal to 10!!!!!!!, the septuple factorial of 10.

In googology Edit

In Greek-based number-naming systems, 30 is associated with prefix "triaconta-", and with prefix "triginti-" in Latin systems.


As a banknote denomination Edit

The Tunisian dinar had banknotes with this number in the denomination.

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