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# 230 (number)

 ← 229 230 231 →
Cardinal two hundred thirty
Ordinal 230th
(two hundred thirtieth)
Factorization 2 × 5 × 23
Greek numeral ΣΛ´
Roman numeral CCXXX
Binary 111001102
Ternary 221123
Quaternary 32124
Quinary 14105
Senary 10226
Octal 3468
Duodecimal 17212
Vigesimal BA20
Base 36 6E36

230 (two hundred [and] thirty) is the natural number following 229 and preceding 231.

## In mathematics

230 is:

The aliquot sequence starting at 224 is: 224, 280, 440, 640, 890, 730, 602, 454, 230, 202, 104, 106, 56, 64, 63, 41, 1, 0.

There are 230 unique space groups describing all possible crystal symmetries.

230 is:

## References

1. ^ "Sloane's A007304 : Sphenic numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-09-05.
2. ^ "Sloane's A007770 : Happy numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-09-05.
3. ^ "Sloane's A005277 : Nontotients". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-09-05.