1820

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
7
13

Its 24 divisors are:
1
2
4
5
7
10
13
14
20
26
28
35
52
65
70
91
130
140
182
260
364
455
910
1820
Its aliquote sum is:
2884
makeing it a abundant number.

As Unicode codepoint (since version 3.0) this number represents this character:ܜ SYRIAC LETTER TETH GARSHUNI in Syriac (Source: https://ucdapi.org/unicode/latest/codepoint/dec/1820); HTML: ܜ

The number appears at position 24653 of the decimal digits of π surrounded by
12902745397762140493182014658008021566536067 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: 866.426ms; cpu: 78.3160000000009ms)