Base | Representation |
---|---|
bin | 111001011111… |
… | …1001001000001 |
3 | 2002201102110221 |
4 | 1302333021001 |
5 | 30204034131 |
6 | 2554023041 |
7 | 514132405 |
oct | 162771101 |
9 | 62642427 |
10 | 30143041 |
11 | 16018a05 |
12 | a117a81 |
13 | 6325126 |
14 | 4009105 |
15 | 29a6411 |
hex | 1cbf241 |
30143041 has 16 divisors (see below), whose sum is σ = 32457600. Its totient is φ = 27929088.
The previous prime is 30143021. The next prime is 30143051. The reversal of 30143041 is 14034103.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-30143041 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30143011) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131515 + ... + 131743.
It is an arithmetic number, because the mean of its divisors is an integer number (2028600).
Almost surely, 230143041 is an apocalyptic number.
It is an amenable number.
30143041 is a deficient number, since it is larger than the sum of its proper divisors (2314559).
30143041 is a wasteful number, since it uses less digits than its factorization.
30143041 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 408.
The product of its (nonzero) digits is 144, while the sum is 16.
The square root of 30143041 is about 5490.2678441038. The cubic root of 30143041 is about 311.2163140482.
Adding to 30143041 its reverse (14034103), we get a palindrome (44177144).
The spelling of 30143041 in words is "thirty million, one hundred forty-three thousand, forty-one".
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