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7085305 = 55326737
BaseRepresentation
bin11011000001110011111001
3111022222012201
4123001303321
53303212210
6411510201
7114136603
oct33016371
914288181
107085305
113aaa327
122458361
131610cb6
14d26173
1594e53a
hex6c1cf9

7085305 has 8 divisors (see below), whose sum is σ = 8663112. Its totient is φ = 5561088.

The previous prime is 7085293. The next prime is 7085339. The reversal of 7085305 is 5035807.

It can be written as a sum of positive squares in 4 ways, for example, as 1776889 + 5308416 = 1333^2 + 2304^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7085305 - 213 = 7077113 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13104 + ... + 13633.

It is an arithmetic number, because the mean of its divisors is an integer number (1082889).

Almost surely, 27085305 is an apocalyptic number.

It is an amenable number.

7085305 is a deficient number, since it is larger than the sum of its proper divisors (1577807).

7085305 is a wasteful number, since it uses less digits than its factorization.

7085305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26795.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 7085305 is about 2661.8236230074. The cubic root of 7085305 is about 192.0670429210.

The spelling of 7085305 in words is "seven million, eighty-five thousand, three hundred five".

Divisors: 1 5 53 265 26737 133685 1417061 7085305