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28733262286708 = 2272374093918797
BaseRepresentation
bin1101000100001111110111…
…11001000100111101110100
310202201212120110012112200201
412202013323321010331310
512231231210121133313
6141035513425450244
76023624011443400
oct642077371047564
9122655513175621
1028733262286708
119178787539211
1232808474a0984
1313056c5546485
147149a960a100
1534c6410d10dd
hex1a21fbe44f74

28733262286708 has 36 divisors (see below), whose sum is σ = 58494291038820. Its totient is φ = 12313922944512.

The previous prime is 28733262286697. The next prime is 28733262286709. The reversal of 28733262286708 is 80768226233782.

It can be written as a sum of positive squares in 2 ways, for example, as 702357972624 + 28030904314084 = 838068^2 + 5294422^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28733262286708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28733262286709) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5372766 + ... + 9291562.

It is an arithmetic number, because the mean of its divisors is an integer number (1624841417745).

Almost surely, 228733262286708 is an apocalyptic number.

28733262286708 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28733262286708 is an abundant number, since it is smaller than the sum of its proper divisors (29761028752112).

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

28733262286708 is a wasteful number, since it uses less digits than its factorization.

28733262286708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3956224 (or 3956215 counting only the distinct ones).

The product of its (nonzero) digits is 130056192, while the sum is 64.

The spelling of 28733262286708 in words is "twenty-eight trillion, seven hundred thirty-three billion, two hundred sixty-two million, two hundred eighty-six thousand, seven hundred eight".

Divisors: 1 2 4 7 14 28 49 98 196 37409 74818 149636 261863 523726 1047452 1833041 3666082 3918797 7332164 7837594 15675188 27431579 54863158 109726316 192021053 384042106 768084212 146598276973 293196553946 586393107892 1026187938811 2052375877622 4104751755244 7183315571677 14366631143354 28733262286708