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2238189 = 32712753
BaseRepresentation
bin1000100010011011101101
311012201012220
420202123231
51033110224
6115545553
725011222
oct10423355
94181186
102238189
111299648
128bb2b9
13604995
14423949
152e3279
hex2226ed

2238189 has 8 divisors (see below), whose sum is σ = 2996352. Its totient is φ = 1486080.

The previous prime is 2238179. The next prime is 2238209. The reversal of 2238189 is 9818322.

2238189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2238189 - 28 = 2237933 is a prime.

It is a d-powerful number, because it can be written as 214 + 216 + 3 + 82 + 1 + 87 + 95 .

It is a Curzon number.

2238189 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238109) by changing a digit.

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, 564 + ... + 2189.

It is an arithmetic number, because the mean of its divisors is an integer number (374544).

22238189 is an apocalyptic number.

It is an amenable number.

2238189 is a deficient number, since it is larger than the sum of its proper divisors (758163).

2238189 is a wasteful number, since it uses less digits than its factorization.

2238189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3027.

The product of its digits is 6912, while the sum is 33.

The square root of 2238189 is about 1496.0578197383. The cubic root of 2238189 is about 130.8073815846.

The spelling of 2238189 in words is "two million, two hundred thirty-eight thousand, one hundred eighty-nine".

Divisors: 1 3 271 813 2753 8259 746063 2238189