642

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 3 (3 unique) factors are:
2
3
107

Its 8 divisors are:
1
2
3
6
107
214
321
642
Its aliquote sum is:
654
makeing it a abundant number.

As Unicode codepoint (since version 1.1) this number represents this character:ʂ LATIN SMALL LETTER S WITH HOOK in IPA_Ext (Source: https://ucdapi.org/unicode/latest/codepoint/dec/642); HTML: ʂ

In the work of Johann Sebastian Bach BWV 642 is Wer nur den lieben Gott lässt walten

The number appears at position 820 of the decimal digits of π surrounded by
9502445945534690830264252230825334468503526 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 1086.912ms; cpu: 98.4440000000006ms)