| Base 10 | 19 (2 digits) | ||
| Digit Sum: 10 | Digital Root: 1 | happy | |
| Base 2 | 0b10011 (5 digits) | ||
| Digit Sum: 0b11 | Digital Root: 0b1 | always happy | |
| Base 8 | 023 (2 digits) | ||
| Digit Sum: 05 | Digital Root: 05 | sad | |
| Base 16 | 0x13 (2 digits) | ||
| Digit Sum: 0x4 | Digital Root: 0x4 | sad | |
More about this number at Positiv Integers and Number Empire.
The number is a prime
It is a Twin prime for 17.
It is a Cousin prime for 23.
It is a Sexy prime for 13.
| In HTML this number represents this color: |
⇧↑⇧↑⇧↑ #000013 ⇩↓⇩↓⇩↓ |
In the work of Johann Sebastian Bach BWV 19 is Es erhub sich ein Streit
The number appears at position 37 of the decimal digits of π surrounded by
384626433832795028841971693993751058209749 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: 904.959ms; cpu: 80.0530000000013ms)