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28069035533 = 7112983269563
BaseRepresentation
bin11010001001000010…
…110111111000001101
32200110011211202002122
4122021002313320031
5424441133114113
620521132502325
72012401602560
oct321102677015
980404752078
1028069035533
11109a4269930
12553431a9a5
13285430c586
141503c004d7
15ae4351408
hex6890b7e0d

28069035533 has 64 divisors (see below), whose sum is σ = 36839577600. Its totient is φ = 20748860160.

The previous prime is 28069035451. The next prime is 28069035539. The reversal of 28069035533 is 33553096082.

It is a happy number.

It is not a de Polignac number, because 28069035533 - 216 = 28068969997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28069035539) 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 63 ways as a sum of consecutive naturals, for example, 49855910 + ... + 49856472.

It is an arithmetic number, because the mean of its divisors is an integer number (575618400).

Almost surely, 228069035533 is an apocalyptic number.

It is an amenable number.

28069035533 is a deficient number, since it is larger than the sum of its proper divisors (8770542067).

28069035533 is a wasteful number, since it uses less digits than its factorization.

28069035533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962.

The product of its (nonzero) digits is 583200, while the sum is 44.

The spelling of 28069035533 in words is "twenty-eight billion, sixty-nine million, thirty-five thousand, five hundred thirty-three".

Divisors: 1 7 11 29 77 83 203 269 319 563 581 913 1883 2233 2407 2959 3941 6193 6391 7801 16327 16849 20713 22327 26477 43351 46729 54607 85811 114289 151447 156289 179597 185339 245597 327103 514019 600677 647483 1060129 1257179 1355141 1665917 1719179 3598133 4391963 4532381 7122313 9485987 11661419 12570101 14906551 30743741 48311593 49856191 87990707 104345857 138271111 338181151 364532929 967897777 2551730503 4009862219 28069035533