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765125 = 536121
BaseRepresentation
bin10111010110011000101
31102212112222
42322303011
5143441000
624222125
76334454
oct2726305
91385488
10765125
11482939
1230a945
1320a34a
1415cb9b
15101a85
hexbacc5

765125 has 8 divisors (see below), whose sum is σ = 955032. Its totient is φ = 612000.

The previous prime is 765109. The next prime is 765131. The reversal of 765125 is 521567.

It can be written as a sum of positive squares in 4 ways, for example, as 134689 + 630436 = 367^2 + 794^2 .

It is not a de Polignac number, because 765125 - 24 = 765109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 765094 and 765103.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 765125.

It is an unprimeable number.

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, 2936 + ... + 3185.

It is an arithmetic number, because the mean of its divisors is an integer number (119379).

2765125 is an apocalyptic number.

It is an amenable number.

765125 is a deficient number, since it is larger than the sum of its proper divisors (189907).

765125 is an equidigital number, since it uses as much as digits as its factorization.

765125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136 (or 6126 counting only the distinct ones).

The product of its digits is 2100, while the sum is 26.

The square root of 765125 is about 874.7142390518. The cubic root of 765125 is about 91.4627238250.

The spelling of 765125 in words is "seven hundred sixty-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 6121 30605 153025 765125