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13431441015 = 325907329081
BaseRepresentation
bin11001000001001001…
…11000011001110111
31021200001121220021100
430200210320121313
5210001422103030
610100442221143
7653562236106
oct144044703167
937601556240
1013431441015
115772775483
12272a1b47b3
1313608a1145
14915b9603d
15539276360
hex320938677

13431441015 has 24 divisors (see below), whose sum is σ = 23306903568. Its totient is φ = 7155515520.

The previous prime is 13431441011. The next prime is 13431441029. The reversal of 13431441015 is 51014413431.

It is not a de Polignac number, because 13431441015 - 22 = 13431441011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13431441015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431441011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 123726 + ... + 205355.

It is an arithmetic number, because the mean of its divisors is an integer number (971120982).

Almost surely, 213431441015 is an apocalyptic number.

13431441015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13431441015 is a deficient number, since it is larger than the sum of its proper divisors (9875462553).

13431441015 is a wasteful number, since it uses less digits than its factorization.

13431441015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329999 (or 329996 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 13431441015 its reverse (51014413431), we get a palindrome (64445854446).

The spelling of 13431441015 in words is "thirteen billion, four hundred thirty-one million, four hundred forty-one thousand, fifteen".

Divisors: 1 3 5 9 15 45 907 2721 4535 8163 13605 40815 329081 987243 1645405 2961729 4936215 14808645 298476467 895429401 1492382335 2686288203 4477147005 13431441015