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8890090389 = 332982713729
BaseRepresentation
bin10000100011110010…
…00000001110010101
3211221120021101101000
420101321000032111
5121201330343024
64030053253513
7433206343605
oct102171001625
924846241330
108890090389
113852251544
121881334299
13ab8a7a11b
146049a4c05
1537071acc9
hex211e40395

8890090389 has 32 divisors (see below), whose sum is σ = 13642128000. Its totient is φ = 5715021312.

The previous prime is 8890090369. The next prime is 8890090423. The reversal of 8890090389 is 9830900988.

It is not a de Polignac number, because 8890090389 - 215 = 8890057621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8890090369) 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 31 ways as a sum of consecutive naturals, for example, 640677 + ... + 654405.

It is an arithmetic number, because the mean of its divisors is an integer number (426316500).

Almost surely, 28890090389 is an apocalyptic number.

It is an amenable number.

8890090389 is a deficient number, since it is larger than the sum of its proper divisors (4752037611).

8890090389 is a wasteful number, since it uses less digits than its factorization.

8890090389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14594 (or 14588 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 54.

The square root of 8890090389 is about 94287.2758594711. The cubic root of 8890090389 is about 2071.5816666027.

The spelling of 8890090389 in words is "eight billion, eight hundred ninety million, ninety thousand, three hundred eighty-nine".

Divisors: 1 3 9 27 29 87 261 783 827 2481 7443 13729 22329 23983 41187 71949 123561 215847 370683 398141 647541 1194423 3583269 10749807 11353883 34061649 102184947 306554841 329262607 987787821 2963363463 8890090389