8221

Properties by base:

Base 108221 (4 digits)
Digit Sum: 13
Digital Root: 4 sad
Base 20b10000000011101 (14 digits)
Digit Sum: 0b101
Digital Root: 0b1 always happy
Base 8020035 (5 digits)
Digit Sum: 012
Digital Root: 03 sad
Base 160x201d (4 digits)
Digit Sum: 0x10
Digital Root: 0x1 sad

More about this number at Positiv Integers and Number Empire.

The number is a prime

It is a Twin prime for 8219.

In HTML this number represents this color:  
#00201D
 

As Unicode codepoint (since version 1.1) this number represents this character: RIGHT DOUBLE QUOTATION MARK in Punctuation (Source: https://ucdapi.org/unicode/latest/codepoint/dec/8221); HTML: ”

The number appears at position 5149 of the decimal digits of π surrounded by
89690706977942236250822168895738379862300159 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: 880.682ms; cpu: 70.092ms)


math@heini.at