Binary Number | _{2} | |

Decimal Number | _{10} | |

Octal Number | _{8} | |

Hexadecimal Number | _{16} |

## Binary number

Binary numbering system uses only two symbols 0 and 1. Each digits of a binary number is referred to *bits*. Binary system is also known as *base -2 system*. Each digit is represented by the increasing *power of 2* from the LSB (Least Significant Bit). Binary system is the heart of digital electronics and is used for information flow. In digital electronics, 0 and 1 are used to denote logic states, high and low. Arithmetic operations are also possible in binary system.

**Try:**Binary Converter

## Decimal Number

Whole number, a decimal point and a fractional value combines to form a decimal number. The decimal point separates the whole number part from the fractional part of the number. Each digit of a decimal number can be any number from 0 to 9. Any value less than 1 is written to the right of decimal point. Decimal numbers are also known as *base-10 number or counting numbers*. Place value of decimal number varies as the whole number powers of 10 starting from the left of decimal point. Similarly, the place value of digits left to decimal point varies as the division of power of tens.

**Try:**Decimal Converter

## Octal Number

Octal numbers use digits from 0-7 only. It is known as *base-8 number*. The place value of each digits of an octal number varies as the whole number powers of 8 starting from the right (Least Significant Digit). The first single digit number in octal system is 0 and the last is 7. Similarly, the first two digit octal number is 10 and the last is 77 and so on. Octal number system was widely used in early computers.

**Try:**Octal Converter

## Hexadecimal Number

Hexadecimal number system uses 16 different symbols to represent a numeric value. It uses numbers 0 to 9 and alphabets A to F for representation. . The place value of each digits of an hexadecimal number varies as the whole number powers of 16 starting from the right (Least Significant Digit). The first single digit number in hexadecimal system is 0 and the last is F. Similarly, the first two digit hexadecimal number is 10 and the last is FF and so on. It is used as an alternative for binary numbers by developers and programmers.

**Try:**Hexadecimal Converter

## Binary, Decimal, Octal and Hexadecimal conversion table

Binary | Decimal | Octal | Hexadecimal |
---|---|---|---|

0001 | 01 | 01 | 01 |

0010 | 02 | 02 | 02 |

0011 | 03 | 03 | 03 |

0100 | 04 | 04 | 04 |

0101 | 05 | 05 | 05 |

0110 | 06 | 06 | 06 |

0111 | 07 | 07 | 07 |

1000 | 08 | 10 | 08 |

1001 | 09 | 11 | 09 |

1010 | 10 | 12 | 0A |

1011 | 11 | 13 | 0B |

1100 | 12 | 14 | 0C |

1101 | 13 | 15 | 0D |

1110 | 14 | 16 | 0E |

1111 | 15 | 17 | 0F |

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