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28748134084 = 2231231839791
BaseRepresentation
bin11010110001100001…
…011011011011000100
32202012111200112011211
4122301201123123010
5432334010242314
621112352141204
72035256051665
oct326141333304
982174615154
1028748134084
11112126326aa
1256a3837804
132931c11137
14156a09736c
15b33c959c4
hex6b185b6c4

28748134084 has 12 divisors (see below), whose sum is σ = 51932113408. Its totient is φ = 13910387400.

The previous prime is 28748134057. The next prime is 28748134097. The reversal of 28748134084 is 48043184782.

It is a hoax number, since the sum of its digits (49) 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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115919772 + ... + 115920019.

Almost surely, 228748134084 is an apocalyptic number.

It is an amenable number.

28748134084 is a deficient number, since it is larger than the sum of its proper divisors (23183979324).

28748134084 is a wasteful number, since it uses less digits than its factorization.

28748134084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231839826 (or 231839824 counting only the distinct ones).

The product of its (nonzero) digits is 1376256, while the sum is 49.

The spelling of 28748134084 in words is "twenty-eight billion, seven hundred forty-eight million, one hundred thirty-four thousand, eighty-four".

Divisors: 1 2 4 31 62 124 231839791 463679582 927359164 7187033521 14374067042 28748134084