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6900189 = 32300063
BaseRepresentation
bin11010010100100111011101
3110222120021120
4122110213131
53231301224
6403521153
7112436112
oct32244735
913876246
106900189
11399323a
1223891b9
13157796a
14cb8909
15914779
hex6949dd

6900189 has 4 divisors (see below), whose sum is σ = 9200256. Its totient is φ = 4600124.

The previous prime is 6900151. The next prime is 6900203. The reversal of 6900189 is 9810096.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6900189 - 220 = 5851613 is a prime.

It is a super-2 number, since 2×69001892 = 95225216471442, which contains 22 as substring.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6900149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1150029 + ... + 1150034.

It is an arithmetic number, because the mean of its divisors is an integer number (2300064).

Almost surely, 26900189 is an apocalyptic number.

It is an amenable number.

6900189 is a deficient number, since it is larger than the sum of its proper divisors (2300067).

6900189 is a wasteful number, since it uses less digits than its factorization.

6900189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2300066.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 6900189 is about 2626.8210826016. The cubic root of 6900189 is about 190.3795644128.

The spelling of 6900189 in words is "six million, nine hundred thousand, one hundred eighty-nine".

Divisors: 1 3 2300063 6900189