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13520115342 = 2321939532501
BaseRepresentation
bin11001001011101110…
…01001011010001110
31021220020111000120200
430211313021122032
5210142122142332
610113330554330
7656020040616
oct144567113216
937806430520
1013520115342
115808830848
122753a389a6
13137607a866
14923879a46
15541e4017c
hex325dc968e

13520115342 has 24 divisors (see below), whose sum is σ = 30835351560. Its totient is φ = 4269510000.

The previous prime is 13520115313. The next prime is 13520115353. The reversal of 13520115342 is 24351102531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19765909 + ... + 19766592.

It is an arithmetic number, because the mean of its divisors is an integer number (1284806315).

Almost surely, 213520115342 is an apocalyptic number.

13520115342 is an abundant number, since it is smaller than the sum of its proper divisors (17315236218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13520115342 is a wasteful number, since it uses less digits than its factorization.

13520115342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39532528 (or 39532525 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 13520115342 its reverse (24351102531), we get a palindrome (37871217873).

The spelling of 13520115342 in words is "thirteen billion, five hundred twenty million, one hundred fifteen thousand, three hundred forty-two".

Divisors: 1 2 3 6 9 18 19 38 57 114 171 342 39532501 79065002 118597503 237195006 355792509 711585018 751117519 1502235038 2253352557 4506705114 6760057671 13520115342