| Base 10 | 8181 (4 digits) | ||
| Digit Sum: 18 | Digital Root: 9 | happy | |
| Base 2 | 0b1111111110101 (13 digits) | ||
| Digit Sum: 0b1011 | Digital Root: 0b1 | always happy | |
| Base 8 | 017765 (5 digits) | ||
| Digit Sum: 032 | Digital Root: 05 | sad | |
| Base 16 | 0x1ff5 (4 digits) | ||
| Digit Sum: 0x24 | Digital Root: 0x6 | happy | |
More about this number at Positiv Integers and Number Empire.
The number is not a prime.
Its 5 (2 unique) factors are:
34 = 81
101
Its 10 divisors are:
1
3
9
27
81
101
303
909
2727
8181
Its aliquote sum is:
4161
makeing it a
deficient
number.
| In HTML this number represents this color: |
⇧↑⇧↑⇧↑ #001FF5 ⇩↓⇩↓⇩↓ |
The number appears at position 7431 of the decimal digits of π surrounded by
74353632569160781547818115284366795706110861 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: 9188.256ms; cpu: 3979.423ms)