Search a number
-
+
38864790032 = 247333274649
BaseRepresentation
bin100100001100100001…
…011010001000010000
310201022112221220011212
4210030201122020100
51114043341240112
625504303155252
72544051156515
oct441441321020
9121275856155
1038864790032
1115534184a92
1276478a5b28
133884b243a3
141c4990530c
151026ee8522
hex90c85a210

38864790032 has 20 divisors (see below), whose sum is σ = 76332047100. Its totient is φ = 19166197248.

The previous prime is 38864790011. The next prime is 38864790071. The reversal of 38864790032 is 23009746883.

It can be written as a sum of positive squares in 2 ways, for example, as 16670941456 + 22193848576 = 129116^2 + 148976^2 .

It is a super-2 number, since 2×388647900322 (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16636157 + ... + 16638492.

It is an arithmetic number, because the mean of its divisors is an integer number (3816602355).

Almost surely, 238864790032 is an apocalyptic number.

It is an amenable number.

38864790032 is a deficient number, since it is larger than the sum of its proper divisors (37467257068).

38864790032 is a wasteful number, since it uses less digits than its factorization.

38864790032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33274730 (or 33274724 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 38864790032 in words is "thirty-eight billion, eight hundred sixty-four million, seven hundred ninety thousand, thirty-two".

Divisors: 1 2 4 8 16 73 146 292 584 1168 33274649 66549298 133098596 266197192 532394384 2429049377 4858098754 9716197508 19432395016 38864790032