Base | Representation |
---|---|
bin | 11011101001100… |
… | …00010001110101 |
3 | 121011102102022210 |
4 | 31310300101311 |
5 | 433333324140 |
6 | 35003044033 |
7 | 5514253431 |
oct | 1564602165 |
9 | 534372283 |
10 | 231933045 |
11 | 109a13803 |
12 | 65810619 |
13 | 390880b6 |
14 | 22b359c1 |
15 | 15565d80 |
hex | dd30475 |
231933045 has 16 divisors (see below), whose sum is σ = 376178112. Its totient is φ = 122002560.
The previous prime is 231933017. The next prime is 231933059. The reversal of 231933045 is 540339132.
231933045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 231933045 - 213 = 231924853 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104811 + ... + 107000.
It is an arithmetic number, because the mean of its divisors is an integer number (23511132).
Almost surely, 2231933045 is an apocalyptic number.
It is an amenable number.
231933045 is a deficient number, since it is larger than the sum of its proper divisors (144245067).
231933045 is a wasteful number, since it uses less digits than its factorization.
231933045 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 211892.
The product of its (nonzero) digits is 9720, while the sum is 30.
The square root of 231933045 is about 15229.3481475735. The cubic root of 231933045 is about 614.4042482506.
The spelling of 231933045 in words is "two hundred thirty-one million, nine hundred thirty-three thousand, forty-five".
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