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163388237244 = 22313615686437
BaseRepresentation
bin1001100000101010110…
…0101010010110111100
3120121201210210102201020
42120022230222112330
510134104342042434
6203020504544140
714542625046621
oct2301254522674
9517653712636
10163388237244
1163324444a31
12277ba482050
131253b20472b
147c9d8dc348
1543b416e849
hex260ab2a5bc

163388237244 has 12 divisors (see below), whose sum is σ = 381239220264. Its totient is φ = 54462745744.

The previous prime is 163388237239. The next prime is 163388237251. The reversal of 163388237244 is 442732883361.

163388237244 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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, 6807843207 + ... + 6807843230.

It is an arithmetic number, because the mean of its divisors is an integer number (31769935022).

Almost surely, 2163388237244 is an apocalyptic number.

It is an amenable number.

163388237244 is an abundant number, since it is smaller than the sum of its proper divisors (217850983020).

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

163388237244 is a wasteful number, since it uses less digits than its factorization.

163388237244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13615686444 (or 13615686442 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 51.

The spelling of 163388237244 in words is "one hundred sixty-three billion, three hundred eighty-eight million, two hundred thirty-seven thousand, two hundred forty-four".

Divisors: 1 2 3 4 6 12 13615686437 27231372874 40847059311 54462745748 81694118622 163388237244