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10090909009 = 71142125479
BaseRepresentation
bin10010110010111011…
…10000110101010001
3222001020211021211201
421121131300311101
5131131233042014
64345151111201
7505030211536
oct113135606521
928036737751
1010090909009
114309067325
121b57512501
13c4a79a09c
146ba268d8d
153e0d68e74
hex259770d51

10090909009 has 4 divisors (see below), whose sum is σ = 10233034560. Its totient is φ = 9948783460.

The previous prime is 10090909007. The next prime is 10090909013. The reversal of 10090909009 is 90090909001.

10090909009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10090909009 - 21 = 10090909007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10090909001) by changing a digit.

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, 71062669 + ... + 71062810.

It is an arithmetic number, because the mean of its divisors is an integer number (2558258640).

Almost surely, 210090909009 is an apocalyptic number.

It is an amenable number.

10090909009 is a deficient number, since it is larger than the sum of its proper divisors (142125551).

10090909009 is an equidigital number, since it uses as much as digits as its factorization.

10090909009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142125550.

The product of its (nonzero) digits is 6561, while the sum is 37.

The spelling of 10090909009 in words is "ten billion, ninety million, nine hundred nine thousand, nine".

Divisors: 1 71 142125479 10090909009