Base | Representation |
---|---|
bin | 11100000101110111… |
… | …100101111101100001 |
3 | 2212212010102212121110 |
4 | 130011313211331201 |
5 | 443233241334221 |
6 | 21505022413533 |
7 | 2115321141462 |
oct | 340567457541 |
9 | 85763385543 |
10 | 30163230561 |
11 | 118793a2622 |
12 | 5a197312a9 |
13 | 2ac9147129 |
14 | 1661db8d69 |
15 | bb811d776 |
hex | 705de5f61 |
30163230561 has 32 divisors (see below), whose sum is σ = 43147468800. Its totient is φ = 18698634944.
The previous prime is 30163230499. The next prime is 30163230583. The reversal of 30163230561 is 16503236103.
It is a happy number.
It is not a de Polignac number, because 30163230561 - 26 = 30163230497 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (30163230961) 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, 451996 + ... + 514418.
It is an arithmetic number, because the mean of its divisors is an integer number (1348358400).
Almost surely, 230163230561 is an apocalyptic number.
It is an amenable number.
30163230561 is a deficient number, since it is larger than the sum of its proper divisors (12984238239).
30163230561 is a wasteful number, since it uses less digits than its factorization.
30163230561 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 62645.
The product of its (nonzero) digits is 9720, while the sum is 30.
Adding to 30163230561 its reverse (16503236103), we get a palindrome (46666466664).
The spelling of 30163230561 in words is "thirty billion, one hundred sixty-three million, two hundred thirty thousand, five hundred sixty-one".
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