| Base 10 | 4049 (4 digits) | ||
| Digit Sum: 17 | Digital Root: 8 | sad | |
| Base 2 | 0b111111010001 (12 digits) | ||
| Digit Sum: 0b1000 | Digital Root: 0b1 | always happy | |
| Base 8 | 07721 (4 digits) | ||
| Digit Sum: 021 | Digital Root: 03 | sad | |
| Base 16 | 0xfd1 (3 digits) | ||
| Digit Sum: 0x1d | Digital Root: 0xe | sad | |
More about this number at Positiv Integers and Number Empire.
The number is a prime
It is a Twin prime for 4051.
| In HTML this number represents this color: | 
 ⇧↑⇧↑⇧↑ #000FD1 ⇩↓⇩↓⇩↓  | 
As Unicode codepoint (since version 4.1) this number represents this character:࿑ TIBETAN MARK MNYAM YIG GI MGO RGYAN in Tibetan (Source: https://www.unicode.org/Public/UCD/latest/ucdxml/ucd.all.grouped.zip); HTML: ࿑
The number appears at position 14941 of the decimal digits of π surrounded by
83023986006591481616404944965011732131389574 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: 507.423ms; cpu: 64.273ms)