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30017730309 = 372691295517
BaseRepresentation
bin11011111101001100…
…100011011100000101
32212110222122200210020
4123331030203130011
5442434014332214
621442344045353
72111603332500
oct337514433405
985428580706
1030017730309
1111804254086
125998a63859
132aa4c623c8
14164a942137
15baa47c4a9
hex6fd323705

30017730309 has 24 divisors (see below), whose sum is σ = 46625647968. Its totient is φ = 17128107360.

The previous prime is 30017730271. The next prime is 30017730329. The reversal of 30017730309 is 90303771003.

It is not a de Polignac number, because 30017730309 - 231 = 27870246661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30017730309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30017730329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46182 + ... + 249335.

It is an arithmetic number, because the mean of its divisors is an integer number (1942735332).

Almost surely, 230017730309 is an apocalyptic number.

It is an amenable number.

30017730309 is a deficient number, since it is larger than the sum of its proper divisors (16607917659).

30017730309 is a wasteful number, since it uses less digits than its factorization.

30017730309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296225 (or 296218 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 33.

The spelling of 30017730309 in words is "thirty billion, seventeen million, seven hundred thirty thousand, three hundred nine".

Divisors: 1 3 7 21 49 147 691 2073 4837 14511 33859 101577 295517 886551 2068619 6205857 14480333 43440999 204202247 612606741 1429415729 4288247187 10005910103 30017730309