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13115341525 = 52111313926393
BaseRepresentation
bin11000011011011110…
…00011101011010101
31020212000211101021211
430031233003223111
5203330011412100
610005231141421
7643003364206
oct141557035325
936760741254
1013115341525
1156202a5230
122660374871
131310257420
148c5bd15ad
1551b6371ba
hex30dbc3ad5

13115341525 has 48 divisors (see below), whose sum is σ = 19244393280. Its totient is φ = 8741030400.

The previous prime is 13115341517. The next prime is 13115341531. The reversal of 13115341525 is 52514351131.

It is not a de Polignac number, because 13115341525 - 23 = 13115341517 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 (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 483729 + ... + 510121.

It is an arithmetic number, because the mean of its divisors is an integer number (400924860).

Almost surely, 213115341525 is an apocalyptic number.

It is an amenable number.

13115341525 is a deficient number, since it is larger than the sum of its proper divisors (6129051755).

13115341525 is a wasteful number, since it uses less digits than its factorization.

13115341525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26566 (or 26561 counting only the distinct ones).

The product of its digits is 9000, while the sum is 31.

Adding to 13115341525 its reverse (52514351131), we get a palindrome (65629692656).

The spelling of 13115341525 in words is "thirteen billion, one hundred fifteen million, three hundred forty-one thousand, five hundred twenty-five".

Divisors: 1 5 11 13 25 55 65 139 143 275 325 695 715 1529 1807 3475 3575 7645 9035 19877 26393 38225 45175 99385 131965 290323 343109 496925 659825 1451615 1715545 3668627 3774199 7258075 8577725 18343135 18870995 40354897 47692151 91715675 94354975 201774485 238460755 524613661 1008872425 1192303775 2623068305 13115341525