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75

 
Note: click on a word meaning below to see its connections and related words.

The adjective has one meaning:

Meaning #1: being five more than seventy
  Synonyms: seventy-five, lxxv


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Wikipedia: 75 (number)
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75 (seventy-five) is the natural number following 74 and preceding 76.

75
Cardinal seventy-five
Ordinal 75th
(seventy-fifth)
Numeral system 75
Factorization 3 \cdot 5^2
Divisors 1, 3, 5, 15, 25, 75
Roman numeral LXXV
Binary 10010112
Octal 1138
Duodecimal 6312
Hexadecimal 4B16

Contents

In mathematics

As the sum of the first five pentagonal numbers, seventy-five is a pentagonal pyramidal number. It is also an enneagonal number.

It is also a Keith number, because it recurs in a Fibonacci-like sequence started from its base 10 digits: 7, 5, 12, 17, 29, 46, 75... But there is no integer that added up to its own digits adds up to 75, hence 75 is a self number.

Excluding the infinite sets, there are 75 uniform polyhedra (or 76 if edges are allowed to coincide).

In astronomy

Messier object M75, a magnitude 9.5 globular cluster in the constellation Sagittarius

The New General Catalogue object NGC 75, a spiral galaxy in the constellation Pisces

In geography

  • Municipal Okrug 75, a municipal okrug of Frunzensky District of Saint Petersburg, Russia
  • The number of the French department Paris, and thus the first two digits of the postal code for the city of Paris

In other fields

Seventy-five is also:

In sports

  • Heavyweight boxer Larry Holmes had a 69-6 record in 75 bouts
  • Famed American Softball Player Brian Roll wears number 75. He plays out of Rush City, MN.

NFL

MLB


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Wikipedia. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article "75 (number)" Read more