191

Properties by base:

Base 10191 (3 digits)
Digit Sum: 11
Digital Root: 2 sad
Base 20b10111111 (8 digits)
Digit Sum: 0b111
Digital Root: 0b1 always happy
Base 80277 (3 digits)
Digit Sum: 020
Digital Root: 02 sad
Base 160xbf (2 digits)
Digit Sum: 0x1a
Digital Root: 0xb sad

More about this number at Positiv Integers and Number Empire.

The number is a prime

It is a Sophie Germain Prime since 383 is prime

It is a Twin prime for 193.

It is a Sexy prime for 197.

In HTML this number represents this color:  
#0000BF
 

As Unicode codepoint (since version 1.1) this number represents this character:¿ INVERTED QUESTION MARK in Latin_1_Sup (Source: https://ucdapi.org/unicode/latest/codepoint/dec/191); HTML: ¿

In the work of Johann Sebastian Bach BWV 191 is Gloria in excelsis deo

The number appears at position 1944 of the decimal digits of π surrounded by
1237137869609563643719172874677646575739624 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: 1001.126ms; cpu: 90.7809999999998ms)


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