513

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 4 (2 unique) factors are:
3³ = 27
19

Its 8 divisors are:
1
3
9
19
27
57
171
513
Its aliquote sum is:
287
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:ȁ LATIN SMALL LETTER A WITH DOUBLE GRAVE in Latin_Ext_B (Source: https://ucdapi.org/unicode/latest/codepoint/dec/513); HTML: ȁ

In the work of Johann Sebastian Bach BWV 513 is O Ewigkeit, du Donnerwort (Geistliches Lied)

The number appears at position 109 of the decimal digits of π surrounded by
2534211706798214808651328230664709384460955 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: 1000.022ms; cpu: 95.8550000000002ms)