230 (two hundred [and] thirty) is the natural number following 229 and preceding 231.
In mathematics 230 is a composite number and more specifically a sphenic number because it is the product of 3 primes. It is also the smallest sphenic number to immediately precede another sphenic number.
230 a repdigit in bases 22 (AA22), 45 (5545), and 114 (22114). Like all repdigits, it is palindromic in these bases. It is a Harshad number in bases 2, 6, 10, 12, and 23, as well as16 other bases.
230 is a happy number.
230 is a nontotient since there is no integer with 230 coprimes below it.
230 is the aliquot sum of both 454 and 52441. The aliquot sequence starting at 224 is:
A maximum of 230 pieces can be obtained by cutting an annulus with 20 cuts.
There are 230 unique space groups describing all possible crystal symmetries.
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