The Number 393: Properties and MeaningsPrime Factors of 393=3x131.
393 is a 132-gonal Number.
393 is a Centered 14-gonal Number.
The Year 393 ADIn the year 393 AD Chinese astronomers observe the guest star SN 393.
In the year 393 AD Eunomius of Cyzicus, Arian bishop and theologian died.
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