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13531202055 = 3257229718701
BaseRepresentation
bin11001001101000010…
…11100001000000111
31021221000100021200200
430212201130020013
5210202441431210
610114404341543
7656213214450
oct144641341007
937830307620
1013531202055
115814013418
1227576a48b3
13137845cc47
14925124127
15542dd00c0
hex32685c207

13531202055 has 48 divisors (see below), whose sum is σ = 26817770304. Its totient is φ = 6182668800.

The previous prime is 13531202053. The next prime is 13531202057. The reversal of 13531202055 is 55020213531.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13531202053) and next prime (13531202057).

It is not a de Polignac number, because 13531202055 - 21 = 13531202053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13531202053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 714205 + ... + 732905.

It is an arithmetic number, because the mean of its divisors is an integer number (558703548).

Almost surely, 213531202055 is an apocalyptic number.

13531202055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531202055 is a deficient number, since it is larger than the sum of its proper divisors (13286568249).

13531202055 is a wasteful number, since it uses less digits than its factorization.

13531202055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21016 (or 21013 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

Adding to 13531202055 its reverse (55020213531), we get a palindrome (68551415586).

The spelling of 13531202055 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, fifty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 2297 6891 11485 16079 18701 20673 34455 48237 56103 80395 93505 103365 130907 144711 168309 241185 280515 392721 654535 723555 841545 1178163 1963605 5890815 42956197 128868591 214780985 300693379 386605773 644342955 902080137 1503466895 1933028865 2706240411 4510400685 13531202055