9020

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 5 (4 unique) factors are:
2² = 4
5
11
41

Its 24 divisors are:
1
2
4
5
10
11
20
22
41
44
55
82
110
164
205
220
410
451
820
902
1804
2255
4510
9020
Its aliquote sum is:
12148
makeing it a abundant number.

As Unicode codepoint (since version 1.1) this number represents this character:⌼ APL FUNCTIONAL SYMBOL QUAD CIRCLE in Misc_Technical (Source: https://ucdapi.org/unicode/latest/codepoint/dec/9020); HTML: ⌼

The number appears at position 12629 of the decimal digits of π surrounded by
26111912800928252561902052630163911477247331 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: 1010.539ms; cpu: 166.51ms)