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30559389 = 372449463
BaseRepresentation
bin111010010010…
…0110010011101
32010111120121020
41310210302131
530310400024
63010554353
7520515300
oct164446235
963446536
1030559389
11162827a3
12a2989b9
13643c7a3
1440b6b37
152a39979
hex1d24c9d

30559389 has 24 divisors (see below), whose sum is σ = 47606400. Its totient is φ = 17385984.

The previous prime is 30559367. The next prime is 30559423. The reversal of 30559389 is 98395503.

It is not a de Polignac number, because 30559389 - 213 = 30551197 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30559389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30559339) 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 23 ways as a sum of consecutive naturals, for example, 65772 + ... + 66234.

It is an arithmetic number, because the mean of its divisors is an integer number (1983600).

Almost surely, 230559389 is an apocalyptic number.

It is an amenable number.

30559389 is a deficient number, since it is larger than the sum of its proper divisors (17047011).

30559389 is a wasteful number, since it uses less digits than its factorization.

30559389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 30559389 is about 5528.0547211474. The cubic root of 30559389 is about 312.6426493272.

The spelling of 30559389 in words is "thirty million, five hundred fifty-nine thousand, three hundred eighty-nine".

Divisors: 1 3 7 21 49 147 449 463 1347 1389 3143 3241 9429 9723 22001 22687 66003 68061 207887 623661 1455209 4365627 10186463 30559389