1100

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 5 (3 unique) factors are:
2² = 4
5² = 25
11

Its 18 divisors are:
1
2
4
5
10
11
20
22
25
44
50
55
100
110
220
275
550
1100
Its aliquote sum is:
1504
makeing it a abundant number.

As Unicode codepoint (since version 1.1) this number represents this character:ь CYRILLIC SMALL LETTER SOFT SIGN in Cyrillic (Source: https://ucdapi.org/unicode/latest/codepoint/dec/1100); HTML: ь

In the work of Johann Sebastian Bach BWV 1100 is Allein zu dir, Herr Jesu Christ (Neumeister-Sammlung)

The number appears at position 3847 of the decimal digits of π surrounded by
91302033038019762110110044929321516084244485 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: 923.617ms; cpu: 98.7190000000009ms)