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11571007642 = 27379253477
BaseRepresentation
bin10101100011010111…
…11001000010011010
31002212101220002110121
422301223321002122
5142144134221032
65152102503454
7556511641105
oct126153710232
932771802417
1011571007642
1149a8594337
1222ab134b8a
131125311aac
147baa6b73c
1547ac81a97
hex2b1af909a

11571007642 has 8 divisors (see below), whose sum is σ = 17594272116. Its totient is φ = 5706250272.

The previous prime is 11571007631. The next prime is 11571007661. The reversal of 11571007642 is 24670017511.

11571007642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10446679681 + 1124327961 = 102209^2 + 33531^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 11571007598 and 11571007607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39626593 + ... + 39626884.

Almost surely, 211571007642 is an apocalyptic number.

11571007642 is a deficient number, since it is larger than the sum of its proper divisors (6023264474).

11571007642 is an equidigital number, since it uses as much as digits as its factorization.

11571007642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79253552.

The product of its (nonzero) digits is 11760, while the sum is 34.

The spelling of 11571007642 in words is "eleven billion, five hundred seventy-one million, seven thousand, six hundred forty-two".

Divisors: 1 2 73 146 79253477 158506954 5785503821 11571007642