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389012234 = 21327115519
BaseRepresentation
bin10111001011111…
…101101100001010
31000002222212110112
4113023331230022
51244041342414
6102333514322
712432356312
oct2713755412
91002885415
10389012234
1118a650716
12aa3429a2
1362795270
1439944442
1524242d3e
hex172fdb0a

389012234 has 16 divisors (see below), whose sum is σ = 628750080. Its totient is φ = 179445360.

The previous prime is 389012203. The next prime is 389012237. The reversal of 389012234 is 432210983.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 389012234.

It is not an unprimeable number, because it can be changed into a prime (389012237) 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 7 ways as a sum of consecutive naturals, for example, 67727 + ... + 73245.

It is an arithmetic number, because the mean of its divisors is an integer number (39296880).

Almost surely, 2389012234 is an apocalyptic number.

389012234 is a deficient number, since it is larger than the sum of its proper divisors (239737846).

389012234 is a wasteful number, since it uses less digits than its factorization.

389012234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 389012234 is about 19723.3930650890. The cubic root of 389012234 is about 729.9970188156.

The spelling of 389012234 in words is "three hundred eighty-nine million, twelve thousand, two hundred thirty-four".

Divisors: 1 2 13 26 2711 5422 5519 11038 35243 70486 71747 143494 14962009 29924018 194506117 389012234