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28010629688 = 237347963407
BaseRepresentation
bin11010000101100100…
…000100101000111000
32200022002221102100012
4122011210010220320
5424331210122223
620511245001052
72011062265256
oct320544045070
980262842305
1028010629688
11109742a7738
125518853188
1328451a00c2
1414da1595d6
15ade165c78
hex685904a38

28010629688 has 16 divisors (see below), whose sum is σ = 53239382880. Its totient is φ = 13813460928.

The previous prime is 28010629663. The next prime is 28010629693. The reversal of 28010629688 is 88692601082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23981120 + ... + 23982287.

It is an arithmetic number, because the mean of its divisors is an integer number (3327461430).

Almost surely, 228010629688 is an apocalyptic number.

It is an amenable number.

28010629688 is a deficient number, since it is larger than the sum of its proper divisors (25228753192).

28010629688 is a wasteful number, since it uses less digits than its factorization.

28010629688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47963486 (or 47963482 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 50.

The spelling of 28010629688 in words is "twenty-eight billion, ten million, six hundred twenty-nine thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 73 146 292 584 47963407 95926814 191853628 383707256 3501328711 7002657422 14005314844 28010629688