9950

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:
2
5² = 25
199

Its 12 divisors are:
1
2
5
10
25
50
199
398
995
1990
4975
9950
Its aliquote sum is:
8650
makeing it a deficient number.

As Unicode codepoint (since version 5.2) this number represents this character:⛞ FALLING DIAGONAL IN WHITE CIRCLE IN BLACK SQUARE in Misc_Symbols (Source: https://ucdapi.org/unicode/latest/codepoint/dec/9950); HTML: ⛞

The number appears at position 7014 of the decimal digits of π surrounded by
49628674460477464915995054973742562690104903 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: 793.061ms; cpu: 80.473000000012ms)