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189066 = 2331511
BaseRepresentation
bin101110001010001010
3100121100110
4232022022
522022231
64015150
71415133
oct561212
9317313
10189066
1111a059
12914b6
1368097
144cc8a
153b046
hex2e28a

189066 has 8 divisors (see below), whose sum is σ = 378144. Its totient is φ = 63020.

The previous prime is 189061. The next prime is 189067. The reversal of 189066 is 660981.

It is a sphenic number, since it is the product of 3 distinct primes.

189066 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (189061) by changing a digit.

189066 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 in 3 ways as a sum of consecutive naturals, for example, 15750 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (47268).

2189066 is an apocalyptic number.

189066 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

189066 is a wasteful number, since it uses less digits than its factorization.

189066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31516.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 189066 is about 434.8172029715. The cubic root of 189066 is about 57.3946147829.

The spelling of 189066 in words is "one hundred eighty-nine thousand, sixty-six".

Divisors: 1 2 3 6 31511 63022 94533 189066