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389129150 = 25217457799
BaseRepresentation
bin10111001100011…
…010001110111110
31000010012210211202
4113030122032332
51244104113100
6102340215502
712433354214
oct2714321676
91003183752
10389129150
1118a720543
12aa39a592
1362806547
1439974cb4
15242677d5
hex1731a3be

389129150 has 24 divisors (see below), whose sum is σ = 766357200. Its totient is φ = 146495360.

The previous prime is 389129141. The next prime is 389129179. The reversal of 389129150 is 51921983.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 228050 + ... + 229749.

It is an arithmetic number, because the mean of its divisors is an integer number (31931550).

Almost surely, 2389129150 is an apocalyptic number.

389129150 is a deficient number, since it is larger than the sum of its proper divisors (377228050).

389129150 is a wasteful number, since it uses less digits than its factorization.

389129150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457828 (or 457823 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 389129150 is about 19726.3567340754. The cubic root of 389129150 is about 730.0701440073.

The spelling of 389129150 in words is "three hundred eighty-nine million, one hundred twenty-nine thousand, one hundred fifty".

Divisors: 1 2 5 10 17 25 34 50 85 170 425 850 457799 915598 2288995 4577990 7782583 11444975 15565166 22889950 38912915 77825830 194564575 389129150