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188330207 = 13113128203
BaseRepresentation
bin10110011100110…
…11000011011111
3111010101011110212
423032123003133
5341203031312
630404323035
74444531442
oct1316330337
9433334425
10188330207
11973422aa
12530a347b
133002c6c0
141b025659
1511801822
hexb39b0df

188330207 has 8 divisors (see below), whose sum is σ = 204613584. Its totient is φ = 172303488.

The previous prime is 188330203. The next prime is 188330213. The reversal of 188330207 is 702033881.

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

It is a cyclic number.

It is not a de Polignac number, because 188330207 - 22 = 188330203 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188330203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62633 + ... + 65570.

It is an arithmetic number, because the mean of its divisors is an integer number (25576698).

Almost surely, 2188330207 is an apocalyptic number.

188330207 is a deficient number, since it is larger than the sum of its proper divisors (16283377).

188330207 is a wasteful number, since it uses less digits than its factorization.

188330207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128329.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 188330207 is about 13723.3453283083. The cubic root of 188330207 is about 573.2006328977.

The spelling of 188330207 in words is "one hundred eighty-eight million, three hundred thirty thousand, two hundred seven".

Divisors: 1 13 113 1469 128203 1666639 14486939 188330207