Base | Representation |
---|---|
bin | 11011011010111… |
… | …11011001101011 |
3 | 121000211200100011 |
4 | 31231133121223 |
5 | 432341411112 |
6 | 34454152351 |
7 | 5462133133 |
oct | 1555373153 |
9 | 530750304 |
10 | 230028907 |
11 | 108933139 |
12 | 650526b7 |
13 | 3886c4a4 |
14 | 2279bac3 |
15 | 152dbaa7 |
hex | db5f66b |
230028907 has 2 divisors, whose sum is σ = 230028908. Its totient is φ = 230028906.
The previous prime is 230028859. The next prime is 230028917. The reversal of 230028907 is 709820032.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 230028907 - 27 = 230028779 is a prime.
It is a super-4 number, since 4×2300289074 (a number of 35 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is not a weakly prime, because it can be changed into another prime (230028917) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115014453 + 115014454.
It is an arithmetic number, because the mean of its divisors is an integer number (115014454).
Almost surely, 2230028907 is an apocalyptic number.
230028907 is a deficient number, since it is larger than the sum of its proper divisors (1).
230028907 is an equidigital number, since it uses as much as digits as its factorization.
230028907 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6048, while the sum is 31.
The square root of 230028907 is about 15166.7038937272. The cubic root of 230028907 is about 612.7182347143.
Adding to 230028907 its reverse (709820032), we get a palindrome (939848939).
The spelling of 230028907 in words is "two hundred thirty million, twenty-eight thousand, nine hundred seven".
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