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163087 = 712297
BaseRepresentation
bin100111110100001111
322021201021
4213310033
520204322
63255011
71246321
oct476417
9267637
10163087
11101591
127a467
1359302
1443611
15334c7
hex27d0f

163087 has 4 divisors (see below), whose sum is σ = 165456. Its totient is φ = 160720.

The previous prime is 163063. The next prime is 163109. The reversal of 163087 is 780361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163087 - 211 = 161039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1078 + ... + 1219.

It is an arithmetic number, because the mean of its divisors is an integer number (41364).

2163087 is an apocalyptic number.

163087 is a deficient number, since it is larger than the sum of its proper divisors (2369).

163087 is an equidigital number, since it uses as much as digits as its factorization.

163087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 163087 is about 403.8403149761. The cubic root of 163087 is about 54.6352726414.

The spelling of 163087 in words is "one hundred sixty-three thousand, eighty-seven".

Divisors: 1 71 2297 163087