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13315147725 = 3521129556537
BaseRepresentation
bin11000110011010010…
…10000011111001101
31021100221210120212110
430121221100133031
5204232134211400
610041125454233
7650650613445
oct143151203715
937327716773
1013315147725
115713065620
1226b7271379
131342774449
14904563125
1552de53e50
hex319a507cd

13315147725 has 48 divisors (see below), whose sum is σ = 24843856320. Its totient is φ = 6233203200.

The previous prime is 13315147721. The next prime is 13315147733. The reversal of 13315147725 is 52774151331.

13315147725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13315147725 - 22 = 13315147721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315147721) 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 47 ways as a sum of consecutive naturals, for example, 254344 + ... + 302193.

It is an arithmetic number, because the mean of its divisors is an integer number (517580340).

Almost surely, 213315147725 is an apocalyptic number.

13315147725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13315147725 is a deficient number, since it is larger than the sum of its proper divisors (11528708595).

13315147725 is a wasteful number, since it uses less digits than its factorization.

13315147725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556590 (or 556585 counting only the distinct ones).

The product of its digits is 88200, while the sum is 39.

The spelling of 13315147725 in words is "thirteen billion, three hundred fifteen million, one hundred forty-seven thousand, seven hundred twenty-five".

Divisors: 1 3 5 11 15 25 29 33 55 75 87 145 165 275 319 435 725 825 957 1595 2175 4785 7975 23925 556537 1669611 2782685 6121907 8348055 13913425 16139573 18365721 30609535 41740275 48418719 80697865 91828605 153047675 177535303 242093595 403489325 459143025 532605909 887676515 1210467975 2663029545 4438382575 13315147725