130 (number)

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130 is the natural number following 129 and preceding 131.

<< 130 131 132 133 134 135 136 137 138 139 >> List of numbers — Integers << 100 110 120 130 140 150 160 170 180 190 >>
Cardinal	One hundred [and] thirty
Ordinal	130th
Factorization
Divisors	2, 5, 10, 13, 26, 65
Roman numeral	CXXX
Binary	10000010
Hexadecimal	82

[edit] In mathematics

One hundred [and] thirty is a sphenic number. It is a noncototient since there is no answer to the equation x - φ(x) = 130.

130 is the only integer that is the sum of the squares of its first four divisors, including 1: 1² + 2² + 5² + 10² = 130.

[edit] In other fields

One hundred [and] thirty is also:

• The designation of a spur route of Interstate 30 to be built in Texarkana, Texas.
• The model number of the C-130 aircraft, capable of in-the-air refueling.
• United States Citizenship and Immigration Services Form Petition for an Alien Relative.
• The year AD 130 or 130 BC.
• The number largest ever detonated nuclear test, Tsar bomb