Base | Representation |
---|---|
bin | 11011011011110… |
… | …11010000100100 |
3 | 121001001110212021 |
4 | 31231323100210 |
5 | 432404034022 |
6 | 34500432524 |
7 | 5463116611 |
oct | 1555732044 |
9 | 531043767 |
10 | 230143012 |
11 | 108a00940 |
12 | 650a8744 |
13 | 388ac3c8 |
14 | 227cb508 |
15 | 153107c7 |
hex | db7b424 |
230143012 has 48 divisors (see below), whose sum is σ = 449491392. Its totient is φ = 102228480.
The previous prime is 230142989. The next prime is 230143019. The reversal of 230143012 is 210341032.
It is a happy number.
It is a super-3 number, since 3×2301430123 (a number of 26 digits) contains 333 as substring.
It is an alternating number because its digits alternate between even and odd.
It is not an unprimeable number, because it can be changed into a prime (230143019) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 439783 + ... + 440305.
It is an arithmetic number, because the mean of its divisors is an integer number (9364404).
Almost surely, 2230143012 is an apocalyptic number.
230143012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.
It is an amenable number.
230143012 is a deficient number, since it is larger than the sum of its proper divisors (219348380).
230143012 is a wasteful number, since it uses less digits than its factorization.
230143012 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 748 (or 746 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 230143012 is about 15170.4651214127. The cubic root of 230143012 is about 612.8195301820.
Adding to 230143012 its reverse (210341032), we get a palindrome (440484044).
The spelling of 230143012 in words is "two hundred thirty million, one hundred forty-three thousand, twelve".
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