Search a number
-
+
389192534 = 21512235779
BaseRepresentation
bin10111001100101…
…001101101010110
31000010100000210022
4113030221231112
51244113130114
6102341425142
712434040053
oct2714515526
91003300708
10389192534
1118a764125
12aa40b1b2
1362829353
143999002a
152427b48e
hex17329b56

389192534 has 16 divisors (see below), whose sum is σ = 590392320. Its totient is φ = 192407400.

The previous prime is 389192533. The next prime is 389192549. The reversal of 389192534 is 435291983.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389192533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64457 + ... + 70235.

It is an arithmetic number, because the mean of its divisors is an integer number (36899520).

Almost surely, 2389192534 is an apocalyptic number.

389192534 is a deficient number, since it is larger than the sum of its proper divisors (201199786).

389192534 is a wasteful number, since it uses less digits than its factorization.

389192534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155.

The product of its digits is 233280, while the sum is 44.

The square root of 389192534 is about 19727.9632501685. The cubic root of 389192534 is about 730.1097814505.

The spelling of 389192534 in words is "three hundred eighty-nine million, one hundred ninety-two thousand, five hundred thirty-four".

Divisors: 1 2 151 223 302 446 5779 11558 33673 67346 872629 1288717 1745258 2577434 194596267 389192534