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13513053125 = 55112132749
BaseRepresentation
bin11001001010111000…
…01101001111000101
31021212202012020001002
430211130031033011
5210133320200000
610112515343045
7655603025225
oct144534151705
937782166032
1013513053125
115804847900
1227515b1a85
131374777230
1492295c085
155414e78d5
hex32570d3c5

13513053125 has 72 divisors (see below), whose sum is σ = 20000673000. Its totient is φ = 9068400000.

The previous prime is 13513053119. The next prime is 13513053139. The reversal of 13513053125 is 52135031531.

It is a happy number.

13513053125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 12 ways, for example, as 11711135524 + 1801917601 = 108218^2 + 42449^2 .

It is not a de Polignac number, because 13513053125 - 232 = 9218085829 is a prime.

It is a congruent number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 4914251 + ... + 4916999.

It is an arithmetic number, because the mean of its divisors is an integer number (277787125).

Almost surely, 213513053125 is an apocalyptic number.

It is an amenable number.

13513053125 is a deficient number, since it is larger than the sum of its proper divisors (6487619875).

13513053125 is an equidigital number, since it uses as much as digits as its factorization.

13513053125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2778 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 13513053125 its reverse (52135031531), we get a palindrome (65648084656).

The spelling of 13513053125 in words is "thirteen billion, five hundred thirteen million, fifty-three thousand, one hundred twenty-five".

Divisors: 1 5 11 13 25 55 65 121 125 143 275 325 605 625 715 1375 1573 1625 2749 3025 3125 3575 6875 7865 8125 13745 15125 17875 30239 34375 35737 39325 40625 68725 75625 89375 151195 178685 196625 332629 343625 378125 393107 446875 755975 893425 983125 1663145 1718125 1965535 3779875 4324177 4467125 4915625 8315725 8590625 9827675 18899375 21620885 22335625 41578625 49138375 94496875 108104425 111678125 207893125 245691875 540522125 1039465625 1228459375 2702610625 13513053125