302 (three hundred [and] two) is the natural number following 301 and preceding 303. In mathematics 302 is a happy number because repeatedly taking the sum of the squares of the digits of 302 will eventually result in 1. It is a nontotient number because it is an even number and phi(x)=302 has no solutions. There are 302 prime partitions of 40 meaning that there are 302 ways to separate 40 into the sum of prime parts. It is a Eulerian number, denoted as , which also appears twice in the collum for as , and . It is also the number of acyclic digraphs in 5 vertices.
In other fields An adult nematode worm has exactly 302 cells in its nervous system.
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