| Base 10 | 18 (2 digits) | ||
| Digit Sum: 9 | Digital Root: 9 | sad | |
| Base 2 | 0b10010 (5 digits) | ||
| Digit Sum: 0b10 | Digital Root: 0b1 | always happy | |
| Base 8 | 022 (2 digits) | ||
| Digit Sum: 04 | Digital Root: 04 | happy | |
| Base 16 | 0x12 (2 digits) | ||
| Digit Sum: 0x3 | Digital Root: 0x3 | sad | |
More about this number at Positiv Integers and Number Empire.
The number is not a prime.
Its 3 (2 unique) factors are:
2
32 = 9
Its 6 divisors are:
1
2
3
6
9
18
Its aliquote sum is:
21
makeing it a
abundant
number.
| In HTML this number represents this color: |
⇧↑⇧↑⇧↑ #000012 ⇩↓⇩↓⇩↓ |
In the work of Johann Sebastian Bach BWV 18 is Gleichwie der Regen und Schnee vom Himmel fällt [Leipziger Fassung]
The number appears at position 424 of the decimal digits of π surrounded by
572703657595919530921861173819326117931051 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: 872.101ms; cpu: 81.8140000000014ms)