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389079444 = 223132494099
BaseRepresentation
bin10111001100001…
…110000110010100
31000010010021122210
4113030032012110
51244101020234
6102335153420
712433056255
oct2714160624
91003107583
10389079444
1118a697166
12aa375870
13627b9a30
1439960b2c
1524257be9
hex1730e194

389079444 has 24 divisors (see below), whose sum is σ = 977687200. Its totient is φ = 119716704.

The previous prime is 389079407. The next prime is 389079451. The reversal of 389079444 is 444970983.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 389079393 and 389079402.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1246894 + ... + 1247205.

Almost surely, 2389079444 is an apocalyptic number.

It is an amenable number.

389079444 is an abundant number, since it is smaller than the sum of its proper divisors (588607756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

389079444 is a wasteful number, since it uses less digits than its factorization.

389079444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494119 (or 2494117 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 48.

The square root of 389079444 is about 19725.0968058461. The cubic root of 389079444 is about 730.0390571459.

The spelling of 389079444 in words is "three hundred eighty-nine million, seventy-nine thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 2494099 4988198 7482297 9976396 14964594 29929188 32423287 64846574 97269861 129693148 194539722 389079444