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9090009000909 = 321279789680219
BaseRepresentation
bin1000010001000110111011…
…0000011110101111001101
31012011222220100121211101200
42010101232300132233031
52142412314301012114
631155520435500113
71625505616440444
oct204215660365715
935158810554350
109090009000909
112995062117791
121029855757639
1350c251813b45
14235d5cc87d5b
1510b6ba735409
hex8446ec1ebcd

9090009000909 has 12 divisors (see below), whose sum is σ = 13140278860800. Its totient is φ = 6055267911624.

The previous prime is 9090009000907. The next prime is 9090009000937.

9090009000909 is nontrivially palindromic in base 10.

9090009000909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9090009000909 - 21 = 9090009000907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9090009000907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 394828599 + ... + 394851620.

It is an arithmetic number, because the mean of its divisors is an integer number (1095023238400).

Almost surely, 29090009000909 is an apocalyptic number.

It is an amenable number.

9090009000909 is a deficient number, since it is larger than the sum of its proper divisors (4050269859891).

9090009000909 is a wasteful number, since it uses less digits than its factorization.

9090009000909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789681504 (or 789681501 counting only the distinct ones).

The product of its (nonzero) digits is 59049, while the sum is 45.

The spelling of 9090009000909 in words is "nine trillion, ninety billion, nine million, nine hundred nine", and thus it is an aban number.

Divisors: 1 3 9 1279 3837 11511 789680219 2369040657 7107121971 1010001000101 3030003000303 9090009000909