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6831140 = 225341557
BaseRepresentation
bin11010000011110000100100
3110212001120012
4122003300210
53222044030
6402225352
7112030601
oct32036044
913761505
106831140
113946378
122355258
1315523c4
14c9b6a8
158ee095
hex683c24

6831140 has 12 divisors (see below), whose sum is σ = 14345436. Its totient is φ = 2732448.

The previous prime is 6831131. The next prime is 6831151. The reversal of 6831140 is 411386.

It can be written as a sum of positive squares in 2 ways, for example, as 1420864 + 5410276 = 1192^2 + 2326^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170759 + ... + 170798.

It is an arithmetic number, because the mean of its divisors is an integer number (1195453).

Almost surely, 26831140 is an apocalyptic number.

It is an amenable number.

6831140 is an abundant number, since it is smaller than the sum of its proper divisors (7514296).

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

6831140 is a wasteful number, since it uses less digits than its factorization.

6831140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341566 (or 341564 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 6831140 is about 2613.6449644127. The cubic root of 6831140 is about 189.7424025292.

The spelling of 6831140 in words is "six million, eight hundred thirty-one thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 341557 683114 1366228 1707785 3415570 6831140