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115204232065 = 51319234055773
BaseRepresentation
bin110101101001010110…
…1010001001110000001
3102000100210002100122211
41223102231101032001
53341414240411230
6124531334302121
711215603546456
oct1532255211601
9360323070584
10115204232065
114494887074a
121a3b17b7941
13ab2c765170
14580c44982d
152ee3e4242a
hex1ad2b51381

115204232065 has 32 divisors (see below), whose sum is σ = 163528807680. Its totient is φ = 77092114176.

The previous prime is 115204232029. The next prime is 115204232069. The reversal of 115204232065 is 560232402511.

It is a cyclic number.

It is not a de Polignac number, because 115204232065 - 29 = 115204231553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115204232069) 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 31 ways as a sum of consecutive naturals, for example, 1999482 + ... + 2056291.

It is an arithmetic number, because the mean of its divisors is an integer number (5110275240).

Almost surely, 2115204232065 is an apocalyptic number.

It is an amenable number.

115204232065 is a deficient number, since it is larger than the sum of its proper divisors (48324575615).

115204232065 is a wasteful number, since it uses less digits than its factorization.

115204232065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4055833.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 115204232065 its reverse (560232402511), we get a palindrome (675436634576).

The spelling of 115204232065 in words is "one hundred fifteen billion, two hundred four million, two hundred thirty-two thousand, sixty-five".

Divisors: 1 5 13 19 23 65 95 115 247 299 437 1235 1495 2185 5681 28405 4055773 20278865 52725049 77059687 93282779 263625245 385298435 466413895 1001775931 1212676127 1772372801 5008879655 6063380635 8861864005 23040846413 115204232065