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6875725 = 522291201
BaseRepresentation
bin11010001110101001001101
3110221022201111
4122032221031
53230010400
6403212021
7112304563
oct32165115
913838644
106875725
11397691a
122377011
13156979c
14cada33
1590c3ba
hex68ea4d

6875725 has 12 divisors (see below), whose sum is σ = 8570260. Its totient is φ = 5472000.

The previous prime is 6875723. The next prime is 6875731. The reversal of 6875725 is 5275786.

It can be written as a sum of positive squares in 6 ways, for example, as 434281 + 6441444 = 659^2 + 2538^2 .

It is not a de Polignac number, because 6875725 - 21 = 6875723 is a prime.

6875725 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6875723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5125 + ... + 6325.

Almost surely, 26875725 is an apocalyptic number.

It is an amenable number.

6875725 is a deficient number, since it is larger than the sum of its proper divisors (1694535).

6875725 is a wasteful number, since it uses less digits than its factorization.

6875725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440 (or 1435 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 6875725 is about 2622.1603688562. The cubic root of 6875725 is about 190.1543067802.

The spelling of 6875725 in words is "six million, eight hundred seventy-five thousand, seven hundred twenty-five".

Divisors: 1 5 25 229 1145 1201 5725 6005 30025 275029 1375145 6875725