125 (number)

From Wikipedia, the free encyclopedia

125 is the natural number following 124 and preceding 126.

← 120 121 122 123 124 125 126 127 128 129 → List of numbers — Integers ← 100 110 120 130 140 150 160 170 180 190 →
Cardinal	one hundred [and] twenty-five
Ordinal	125th (one hundred [and] twenty fifth)
Factorization	53
Divisors	5, 25
Roman numeral	CXXV
Binary	01111101
Hexadecimal	7D

[edit] In mathematics

One hundred [and] twenty five is the cube of 5. It can be expressed as a sum of two squares in two different ways, 125 = 10² + 5² = 11² + 2².

125 and 126 form a Ruth-Aaron pair under the second definition in which repeated prime factors are counted as often as they occur.

Like so many other powers of 5, it is a Friedman number in base 10 since 125 = 5^{1 + 2}.

In percentage form, it is 12,500%

[edit] Music

Opus 125 is the ninth symphony of Ludwig van Beethoven, the longest symphony to the time of its completion, the first symphony to use a chorus, and Beethoven's last complete symphony.

[edit] In other fields

One hundred [and] twenty five is also:

• The year AD 125 or 125 BC.