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6873138 = 232381841
BaseRepresentation
bin11010001110000000110010
3110221012011200
4122032000302
53224420023
6403152030
7112264206
oct32160062
913835150
106873138
113974988
122375616
13156855c
14cacb06
1590b743
hex68e032

6873138 has 12 divisors (see below), whose sum is σ = 14891838. Its totient is φ = 2291040.

The previous prime is 6873137. The next prime is 6873143. The reversal of 6873138 is 8313786.

It can be written as a sum of positive squares in only one way, i.e., 6827769 + 45369 = 2613^2 + 213^2 .

It is not an unprimeable number, because it can be changed into a prime (6873131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190903 + ... + 190938.

Almost surely, 26873138 is an apocalyptic number.

6873138 is an abundant number, since it is smaller than the sum of its proper divisors (8018700).

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

6873138 is a wasteful number, since it uses less digits than its factorization.

6873138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381849 (or 381846 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 6873138 is about 2621.6670269125. The cubic root of 6873138 is about 190.1304551912.

The spelling of 6873138 in words is "six million, eight hundred seventy-three thousand, one hundred thirty-eight".

Divisors: 1 2 3 6 9 18 381841 763682 1145523 2291046 3436569 6873138