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163892 = 2240973
BaseRepresentation
bin101000000000110100
322022211002
4220000310
520221032
63302432
71251551
oct500064
9268732
10163892
11102153
127aa18
13597a1
1443a28
1533862
hex28034

163892 has 6 divisors (see below), whose sum is σ = 286818. Its totient is φ = 81944.

The previous prime is 163883. The next prime is 163901. The reversal of 163892 is 298361.

It is an interprime number because it is at equal distance from previous prime (163883) and next prime (163901).

It can be written as a sum of positive squares in only one way, i.e., 163216 + 676 = 404^2 + 26^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

163892 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20483 + ... + 20490.

It is an arithmetic number, because the mean of its divisors is an integer number (47803).

2163892 is an apocalyptic number.

It is an amenable number.

163892 is a deficient number, since it is larger than the sum of its proper divisors (122926).

163892 is a wasteful number, since it uses less digits than its factorization.

163892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40977 (or 40975 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 163892 is about 404.8357691707. The cubic root of 163892 is about 54.7250186624.

The spelling of 163892 in words is "one hundred sixty-three thousand, eight hundred ninety-two".

Divisors: 1 2 4 40973 81946 163892