2111

Properties by base:

Base 102111 (4 digits)
Digit Sum: 5
Digital Root: 5 happy
Base 20b100000111111 (12 digits)
Digit Sum: 0b111
Digital Root: 0b1 always happy
Base 804077 (4 digits)
Digit Sum: 022
Digital Root: 04 sad
Base 160x83f (3 digits)
Digit Sum: 0x1a
Digital Root: 0xb happy

More about this number at Positiv Integers and Number Empire.

The number is a prime

It is a Twin prime for 2113.

In HTML this number represents this color:  
#00083F
 

The number appears at position 3991 of the decimal digits of π surrounded by
82325271620105265227211166039666557309254711 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: 743.658ms; cpu: 69.8179999999979ms)


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