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188006 = 27131033
BaseRepresentation
bin101101111001100110
3100112220012
4231321212
522004011
64010222
71412060
oct557146
9315805
10188006
11119285
1290972
1367760
144c730
153aa8b
hex2de66

188006 has 16 divisors (see below), whose sum is σ = 347424. Its totient is φ = 74304.

The previous prime is 187987. The next prime is 188011. The reversal of 188006 is 600881.

188006 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 335 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (21714).

2188006 is an apocalyptic number.

188006 is a deficient number, since it is larger than the sum of its proper divisors (159418).

188006 is a wasteful number, since it uses less digits than its factorization.

188006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 188006 is about 433.5965867024. The cubic root of 188006 is about 57.2871525847.

Adding to 188006 its reverse (600881), we get a palindrome (788887).

The spelling of 188006 in words is "one hundred eighty-eight thousand, six".

Divisors: 1 2 7 13 14 26 91 182 1033 2066 7231 13429 14462 26858 94003 188006