220

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 4 (3 unique) factors are:
2² = 4
5
11

Its 12 divisors are:
1
2
4
5
10
11
20
22
44
55
110
220
Its aliquote sum is:
284
makeing it a abundant number.

As Unicode codepoint (since version 1.1) this number represents this character:Ü LATIN CAPITAL LETTER U WITH DIAERESIS in Latin_1_Sup (Source: https://www.unicode.org/Public/UCD/latest/ucdxml/ucd.all.grouped.zip); HTML: Ü

In the work of Johann Sebastian Bach BWV 220 is Lobt ihn mit Herz und Munde

The number appears at position 1910 of the decimal digits of π surrounded by
2210661186306744278622039194945047123713786 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: 932.346ms; cpu: 84.6360000000006ms)