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30163230561 = 3234714962423
BaseRepresentation
bin11100000101110111…
…100101111101100001
32212212010102212121110
4130011313211331201
5443233241334221
621505022413533
72115321141462
oct340567457541
985763385543
1030163230561
11118793a2622
125a197312a9
132ac9147129
141661db8d69
15bb811d776
hex705de5f61

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".

Divisors: 1 3 23 47 69 141 149 447 1081 3243 3427 7003 10281 21009 62423 161069 187269 483207 1435729 2933881 4307187 8801643 9301027 27903081 67479263 202437789 213923621 437148269 641770863 1311444807 10054410187 30163230561