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11788728601 = 137117971353
BaseRepresentation
bin10101111101010100…
…11011100100011001
31010102120120110110211
422332222123210121
5143120403303401
65225441211121
7565064353066
oct127652334431
933376513424
1011788728601
114aaa480311
122350030aa1
13115b462070
147db943c6d
1548ee3b951
hex2bea9b919

11788728601 has 16 divisors (see below), whose sum is σ = 12946469760. Its totient is φ = 10668551040.

The previous prime is 11788728593. The next prime is 11788728617. The reversal of 11788728601 is 10682788711.

It is a cyclic number.

It is not a de Polignac number, because 11788728601 - 23 = 11788728593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11788728661) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 129541 + ... + 200893.

It is an arithmetic number, because the mean of its divisors is an integer number (809154360).

Almost surely, 211788728601 is an apocalyptic number.

It is an amenable number.

11788728601 is a deficient number, since it is larger than the sum of its proper divisors (1157741159).

11788728601 is a wasteful number, since it uses less digits than its factorization.

11788728601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71616.

The product of its (nonzero) digits is 301056, while the sum is 49.

The spelling of 11788728601 in words is "eleven billion, seven hundred eighty-eight million, seven hundred twenty-eight thousand, six hundred one".

Divisors: 1 13 71 179 923 2327 12709 71353 165217 927589 5066063 12772187 65858819 166038431 906825277 11788728601