Base | Representation |
---|---|
bin | 11011011011110… |
… | …00010101000011 |
3 | 121001000212101210 |
4 | 31231320111003 |
5 | 432403143021 |
6 | 34500301203 |
7 | 5463036615 |
oct | 1555702503 |
9 | 531025353 |
10 | 230131011 |
11 | 1089a2920 |
12 | 650a1803 |
13 | 388a6ac6 |
14 | 227c6db5 |
15 | 1530be76 |
hex | db78543 |
230131011 has 32 divisors (see below), whose sum is σ = 347406336. Its totient is φ = 134244000.
The previous prime is 230131007. The next prime is 230131019. The reversal of 230131011 is 110131032.
It is not a de Polignac number, because 230131011 - 22 = 230131007 is a prime.
It is not an unprimeable number, because it can be changed into a prime (230131019) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 231726 + ... + 232716.
It is an arithmetic number, because the mean of its divisors is an integer number (10856448).
Almost surely, 2230131011 is an apocalyptic number.
230131011 is a deficient number, since it is larger than the sum of its proper divisors (117275325).
230131011 is a wasteful number, since it uses less digits than its factorization.
230131011 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1263.
The product of its (nonzero) digits is 18, while the sum is 12.
The square root of 230131011 is about 15170.0695779551. The cubic root of 230131011 is about 612.8088780010.
Adding to 230131011 its reverse (110131032), we get a palindrome (340262043).
The spelling of 230131011 in words is "two hundred thirty million, one hundred thirty-one thousand, eleven".
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