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166812 = 22313901
BaseRepresentation
bin101000101110011100
322110211020
4220232130
520314222
63324140
71263222
oct505634
9273736
10166812
11104368
1280650
135ac09
1444b12
153465c
hex28b9c

166812 has 12 divisors (see below), whose sum is σ = 389256. Its totient is φ = 55600.

The previous prime is 166807. The next prime is 166823. The reversal of 166812 is 218661.

166812 is digitally balanced in base 2, 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, 6939 + ... + 6962.

It is an arithmetic number, because the mean of its divisors is an integer number (32438).

2166812 is an apocalyptic number.

166812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

166812 is an abundant number, since it is smaller than the sum of its proper divisors (222444).

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

166812 is a wasteful number, since it uses less digits than its factorization.

166812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13908 (or 13906 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 166812 is about 408.4262479322. The cubic root of 166812 is about 55.0481121708.

The spelling of 166812 in words is "one hundred sixty-six thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 12 13901 27802 41703 55604 83406 166812