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675750785 = 5135150157
BaseRepresentation
bin101000010001110…
…010001110000001
31202002112200210212
4220101302032001
52340443011120
6151015403505
722513533623
oct5021621601
91662480725
10675750785
11317497626
1216a383595
13a9ccbb48
1465a64c13
153e4d26c5
hex28472381

675750785 has 4 divisors (see below), whose sum is σ = 810900948. Its totient is φ = 540600624.

The previous prime is 675750763. The next prime is 675750839. The reversal of 675750785 is 587057576.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 522213904 + 153536881 = 22852^2 + 12391^2 .

It is a cyclic number.

It is not a de Polignac number, because 675750785 - 210 = 675749761 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 67575074 + ... + 67575083.

It is an arithmetic number, because the mean of its divisors is an integer number (202725237).

Almost surely, 2675750785 is an apocalyptic number.

It is an amenable number.

675750785 is a deficient number, since it is larger than the sum of its proper divisors (135150163).

675750785 is a wasteful number, since it uses less digits than its factorization.

675750785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135150162.

The product of its (nonzero) digits is 2058000, while the sum is 50.

The square root of 675750785 is about 25995.2069620536. The cubic root of 675750785 is about 877.5304318686.

The spelling of 675750785 in words is "six hundred seventy-five million, seven hundred fifty thousand, seven hundred eighty-five".

Divisors: 1 5 135150157 675750785