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163888 = 2410243
BaseRepresentation
bin101000000000110000
322022210221
4220000300
520221023
63302424
71251544
oct500060
9268727
10163888
1110214a
127aa14
135979a
1443a24
153385d
hex28030

163888 has 10 divisors (see below), whose sum is σ = 317564. Its totient is φ = 81936.

The previous prime is 163883. The next prime is 163901. The reversal of 163888 is 888361.

It is not an unprimeable number, because it can be changed into a prime (163883) by changing a digit.

163888 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106 + ... + 5137.

2163888 is an apocalyptic number.

It is an amenable number.

163888 is a deficient number, since it is larger than the sum of its proper divisors (153676).

163888 is a wasteful number, since it uses less digits than its factorization.

163888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10251 (or 10245 counting only the distinct ones).

The product of its digits is 9216, while the sum is 34.

The square root of 163888 is about 404.8308288656. The cubic root of 163888 is about 54.7245734467.

The spelling of 163888 in words is "one hundred sixty-three thousand, eight hundred eighty-eight".

Divisors: 1 2 4 8 16 10243 20486 40972 81944 163888