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7117975813 = 133117662471
BaseRepresentation
bin1101010000100001…
…11011000100000101
3200101001201122011211
412220100323010011
5104034200211223
63134150531421
7341250540034
oct65020730405
920331648154
107117975813
113022a03643
121467966b71
138958a1710
144b74aa71b
152b9d6ed0d
hex1a843b105

7117975813 has 8 divisors (see below), whose sum is σ = 7912787456. Its totient is φ = 6358489200.

The previous prime is 7117975811. The next prime is 7117975819. The reversal of 7117975813 is 3185797117.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7117975813 - 21 = 7117975811 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7117975811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8830833 + ... + 8831638.

It is an arithmetic number, because the mean of its divisors is an integer number (989098432).

Almost surely, 27117975813 is an apocalyptic number.

It is an amenable number.

7117975813 is a deficient number, since it is larger than the sum of its proper divisors (794811643).

7117975813 is a wasteful number, since it uses less digits than its factorization.

7117975813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17662515.

The product of its digits is 370440, while the sum is 49.

The square root of 7117975813 is about 84368.0971280021. The cubic root of 7117975813 is about 1923.6180164021.

The spelling of 7117975813 in words is "seven billion, one hundred seventeen million, nine hundred seventy-five thousand, eight hundred thirteen".

Divisors: 1 13 31 403 17662471 229612123 547536601 7117975813