| Base 10 | 1691 (4 digits) | ||
| Digit Sum: 17 | Digital Root: 8 | sad | |
| Base 2 | 0b11010011011 (11 digits) | ||
| Digit Sum: 0b111 | Digital Root: 0b1 | always happy | |
| Base 8 | 03233 (4 digits) | ||
| Digit Sum: 013 | Digital Root: 04 | sad | |
| Base 16 | 0x69b (3 digits) | ||
| Digit Sum: 0x1a | Digital Root: 0xb | happy | |
More about this number at Positiv Integers and Number Empire.
The number is not a prime.
Its 2 (2 unique) factors are:
19
89
Its 4 divisors are:
1
19
89
1691
Its aliquote sum is: 
109
makeing it a
deficient
number.
| In HTML this number represents this color: | 
 ⇧↑⇧↑⇧↑ #00069B ⇩↓⇩↓⇩↓  | 
As Unicode codepoint (since version 1.1) this number represents this character:ڛ ARABIC LETTER SEEN WITH THREE DOTS BELOW in Arabic (Source: https://www.unicode.org/Public/UCD/latest/ucdxml/ucd.all.grouped.zip); HTML: ڛ
The number appears at position 20688 of the decimal digits of π surrounded by
61497307886570156850169186474885416791545965 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: 806.17ms; cpu: 67.6200000000007ms)