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Number 1: mathematical and symbolic properties | Crazy Numbers

Everything about number 1

Discover a lot of information on the number 1: properties, mathematical operations, how to write it, symbolism, numerology, representations and many other interesting things!


Numerology and symbolism of the number 1

The number 1 (one) represents the uniqueness, the unique, a starting point, a beginning.

Mathematical properties of 1

Questions and answers
Is 1 a prime number? Yes
Is 1 a perfect number? No
Number of divisors 1
List of dividers
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1
Sum of divisors 1
Prime factorization 1
Prime factors
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How to write / spell 1 in letters?

In letters, the number 1 is written as: One. And in other languages? how does it spell?

1 in other languages
Write 1 in english One
Write 1 in french Un
Write 1 in spanish Uno
Write 1 in portuguese Um

Mathematical representations and links

Other ways to write 1
In letter One
In roman numeral
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In binary 1
In octal 1
In hexadecimal 1
In US dollars
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