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13285048128 = 263116290269
BaseRepresentation
bin11000101111101100…
…11011111101000000
31021021212011100222120
430113312123331000
5204201433020003
610034132404240
7650134021512
oct142766337500
937255140876
1013285048128
1156a8077320
1226a9176680
131339466031
14900569bb2
1552b4aa853
hex317d9bf40

13285048128 has 56 divisors (see below), whose sum is σ = 38345485920. Its totient is φ = 4025771520.

The previous prime is 13285048099. The next prime is 13285048141. The reversal of 13285048128 is 82184058231.

It is a self number, because there is not a number n which added to its sum of digits gives 13285048128.

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 7 ways as a sum of consecutive naturals, for example, 3143023 + ... + 3147246.

It is an arithmetic number, because the mean of its divisors is an integer number (684740820).

Almost surely, 213285048128 is an apocalyptic number.

It is an amenable number.

13285048128 is an abundant number, since it is smaller than the sum of its proper divisors (25060437792).

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

13285048128 is a wasteful number, since it uses less digits than its factorization.

13285048128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6290295 (or 6290285 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 42.

The spelling of 13285048128 in words is "thirteen billion, two hundred eighty-five million, forty-eight thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 32 33 44 48 64 66 88 96 132 176 192 264 352 528 704 1056 2112 6290269 12580538 18870807 25161076 37741614 50322152 69192959 75483228 100644304 138385918 150966456 201288608 207578877 276771836 301932912 402577216 415157754 553543672 603865824 830315508 1107087344 1207731648 1660631016 2214174688 3321262032 4428349376 6642524064 13285048128