109 is the natural number following 108 and preceding 110.

Cardinal	one hundred * nine
Ordinal	109th
Factorization	$prime$
Roman numeral	CIX
Binary	1101101
Hexadecimal	6D

In mathematics

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One hundred ^* nine is the 29th prime number, and also a Chen prime. The previous prime is 107, making them both twin primes. 109 is a centered triangular number. 109 is the smallest number which is palindromic in bases 5 and 9.

In other fields

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109 is also:

• The atomic number of meitnerium.
• The registry number of the famous patrol boat PT-109, commanded by John F. Kennedy.
• The year AD 109 or 109 BC.
• The Messerschmitt Bf 109 was a World War II fighter

Integers

109 (nombre) | 109 | 109 (getal) | 109 | 109 (число) | 109 (število) | 109 (tal) | 109 (số) | 109