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13512403025 = 5211251195761
BaseRepresentation
bin11001001010110011…
…01110100001010001
31021212200222012021022
430211121232201101
5210133133344100
610112453405225
7655564350002
oct144531564121
937780865238
1013512403025
115804443430
122751339815
1313745aa364
1492282d1a9
15541419e85
hex32566e851

13512403025 has 24 divisors (see below), whose sum is σ = 18351512928. Its totient is φ = 9788000000.

The previous prime is 13512402863. The next prime is 13512403103. The reversal of 13512403025 is 52030421531.

It is a happy number.

It is not a de Polignac number, because 13512403025 - 218 = 13512140881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13512402985 and 13512403003.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28856 + ... + 166905.

It is an arithmetic number, because the mean of its divisors is an integer number (764646372).

Almost surely, 213512403025 is an apocalyptic number.

It is an amenable number.

13512403025 is a deficient number, since it is larger than the sum of its proper divisors (4839109903).

13512403025 is a wasteful number, since it uses less digits than its factorization.

13512403025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196033 (or 196028 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 13512403025 its reverse (52030421531), we get a palindrome (65542824556).

The spelling of 13512403025 in words is "thirteen billion, five hundred twelve million, four hundred three thousand, twenty-five".

Divisors: 1 5 11 25 55 251 275 1255 2761 6275 13805 69025 195761 978805 2153371 4894025 10766855 49136011 53834275 245680055 540496121 1228400275 2702480605 13512403025