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166012 = 2273112
BaseRepresentation
bin101000100001111100
322102201121
4220201330
520303022
63320324
71261000
oct504174
9272647
10166012
11103800
12800a4
135a742
1444700
15342c7
hex2887c

166012 has 36 divisors (see below), whose sum is σ = 372400. Its totient is φ = 64680.

The previous prime is 165983. The next prime is 166013. The reversal of 166012 is 210661.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (166013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15087 + ... + 15097.

2166012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 166012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186200).

166012 is an abundant number, since it is smaller than the sum of its proper divisors (206388).

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

166012 is a wasteful number, since it uses less digits than its factorization.

166012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47 (or 20 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 166012 is about 407.4457019039. The cubic root of 166012 is about 54.9599708738.

Adding to 166012 its reverse (210661), we get a palindrome (376673).

The spelling of 166012 in words is "one hundred sixty-six thousand, twelve".

Divisors: 1 2 4 7 11 14 22 28 44 49 77 98 121 154 196 242 308 343 484 539 686 847 1078 1372 1694 2156 3388 3773 5929 7546 11858 15092 23716 41503 83006 166012