6 (six) is a positive integer following 5 and preceding 7. Its ordinal form is written "sixth" or "6th".

Properties Edit

6 is an even number, the third triangular number, the third factorial number, and 3 primorial.

6 is equal to the sum of its proper divisors: 1 + 2 + 3 = 6. This makes it a perfect number, and in fact the smallest number with that property, with the next being 28.

In Czech language, 6 is called "půltucet", meaning "half-twelve".

In googology Edit

Some googologisms based on 6 are sextoogol, superhex and hexalogue. It is not commonly found in googology.

Six is the base of Robert Munafo's idea of classes. 6 is the boundary between class 0 and class 1 numbers, 106 is the boundary between class 1 and class 2 numbers, 10106 is the boundary between class 2 and class 3 numbers, and so on.

In Greek-based number naming systems, 6 is associated with prefix hexa-, and with prefix sexti- in Latin systems.

6 is the last digit of mega.

Googological functions returning 6 Edit

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