| Base 10 | 7 (1 digit) | ||
| Digit Sum: 7 | Digital Root: 7 | happy | |
| Base 2 | 0b111 (3 digits) | ||
| Digit Sum: 0b11 | Digital Root: 0b1 | always happy | |
| Base 8 | 07 (1 digit) | ||
| Digit Sum: 07 | Digital Root: 07 | sad | |
| Base 16 | 0x7 (1 digit) | ||
| Digit Sum: 0x7 | Digital Root: 0x7 | sad | |
More about this number at Positiv Integers and Number Empire.
The number is a Mersenne Prime: 23 - 1
It is related to a perfect number: 28
It is a Safe Prime since 3 is prime
It is a Twin prime for 5.
It is a Cousin prime for 3 and 11.
It is a Sexy prime for 13.
| In HTML this number represents this color: |
⇧↑⇧↑⇧↑ #000007 ⇩↓⇩↓⇩↓ |
In the work of Johann Sebastian Bach BWV 7 is Christ unser Herr zum Jordan kam
The number appears at position 13 of the decimal digits of π surrounded by
3.141592653589793238462643383279502 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: 950.351ms; cpu: 69.26ms)