Search a number
-
+
389838410444 = 22719803991153
BaseRepresentation
bin1011010110001000010…
…11100001001011001100
31101021020111202010200002
411223010023201023030
522341342113113234
6455031142023432
740110362546330
oct5530413411314
91337214663602
10389838410444
1114036968a7aa
1263678117b78
132a9b9324a62
1414c227b97c0
15a21976c27e
hex5ac42e12cc

389838410444 has 48 divisors (see below), whose sum is σ = 820823539200. Its totient is φ = 158258831616.

The previous prime is 389838410443. The next prime is 389838410449. The reversal of 389838410444 is 444014838983.

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 389838410444.

It is not an unprimeable number, because it can be changed into a prime (389838410443) 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 15 ways as a sum of consecutive naturals, for example, 4231172 + ... + 4322324.

It is an arithmetic number, because the mean of its divisors is an integer number (17100490400).

Almost surely, 2389838410444 is an apocalyptic number.

It is an amenable number.

389838410444 is an abundant number, since it is smaller than the sum of its proper divisors (430985128756).

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

389838410444 is a wasteful number, since it uses less digits than its factorization.

389838410444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99222 (or 99220 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 56.

The spelling of 389838410444 in words is "three hundred eighty-nine billion, eight hundred thirty-eight million, four hundred ten thousand, four hundred forty-four".

Divisors: 1 2 4 7 14 19 28 38 76 133 266 532 8039 16078 32156 56273 91153 112546 152741 182306 225092 305482 364612 610964 638071 1069187 1276142 1731907 2138374 2552284 3463814 4276748 6927628 12123349 24246698 48493396 732778967 1465557934 2931115868 5129452769 10258905538 13922800373 20517811076 27845600746 55691201492 97459602611 194919205222 389838410444