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28048545724 = 2223304875497
BaseRepresentation
bin11010000111110100…
…101101011110111100
32200101202021202100211
4122013310231132330
5424420411430344
620515121402204
72012032463533
oct320764553674
980352252324
1028048545724
1110993744601
125529499364
13284ccb7224
1415011c931a
15ae2655334
hex687d2d7bc

28048545724 has 12 divisors (see below), whose sum is σ = 51219083664. Its totient is φ = 13414521824.

The previous prime is 28048545719. The next prime is 28048545751. The reversal of 28048545724 is 42754584082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152437657 + ... + 152437840.

It is an arithmetic number, because the mean of its divisors is an integer number (4268256972).

Almost surely, 228048545724 is an apocalyptic number.

It is an amenable number.

28048545724 is a deficient number, since it is larger than the sum of its proper divisors (23170537940).

28048545724 is a wasteful number, since it uses less digits than its factorization.

28048545724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304875524 (or 304875522 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 49.

The spelling of 28048545724 in words is "twenty-eight billion, forty-eight million, five hundred forty-five thousand, seven hundred twenty-four".

Divisors: 1 2 4 23 46 92 304875497 609750994 1219501988 7012136431 14024272862 28048545724