| Base 10 | 1999 (4 digits) | ||
| Digit Sum: 28 | Digital Root: 1 | sad | |
| Base 2 | 0b11111001111 (11 digits) | ||
| Digit Sum: 0b1001 | Digital Root: 0b1 | always happy | |
| Base 8 | 03717 (4 digits) | ||
| Digit Sum: 022 | Digital Root: 04 | sad | |
| Base 16 | 0x7cf (3 digits) | ||
| Digit Sum: 0x22 | Digital Root: 0x4 | happy | |
More about this number at Positiv Integers and Number Empire.
The number is a prime
It is a Twin prime for 1997.
It is a Cousin prime for 2003.
It is a Sexy prime for 1993.
| In HTML this number represents this color: |
⇧↑⇧↑⇧↑ #0007CF ⇩↓⇩↓⇩↓ |
As Unicode codepoint (since version 5.0) this number represents this character:ߏ NKO LETTER OO in NKo (Source: https://ucdapi.org/unicode/latest/codepoint/dec/1999); HTML: ߏ
The number appears at position 11196 of the decimal digits of π surrounded by
47844598183134112900199920598135220511733658 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: 776.677ms; cpu: 72.1600000000002ms)