Base | Representation |
---|---|
bin | 11011011111110… |
… | …01010001000111 |
3 | 121002000200212020 |
4 | 31233321101013 |
5 | 433022043033 |
6 | 34515454223 |
7 | 5500366431 |
oct | 1557712107 |
9 | 532020766 |
10 | 230659143 |
11 | 1092236a0 |
12 | 652b7373 |
13 | 38a30300 |
14 | 228c3651 |
15 | 153b36b3 |
hex | dbf9447 |
230659143 has 48 divisors (see below), whose sum is σ = 369982080. Its totient is φ = 126672000.
The previous prime is 230659141. The next prime is 230659193. The reversal of 230659143 is 341956032.
It is not a de Polignac number, because 230659143 - 21 = 230659141 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (230659141) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328693 + ... + 329393.
It is an arithmetic number, because the mean of its divisors is an integer number (7707960).
Almost surely, 2230659143 is an apocalyptic number.
230659143 is a deficient number, since it is larger than the sum of its proper divisors (139322937).
230659143 is a wasteful number, since it uses less digits than its factorization.
230659143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 800 (or 787 counting only the distinct ones).
The product of its (nonzero) digits is 19440, while the sum is 33.
The square root of 230659143 is about 15187.4666419387. The cubic root of 230659143 is about 613.2773020713.
The spelling of 230659143 in words is "two hundred thirty million, six hundred fifty-nine thousand, one hundred forty-three".
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