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7135385 = 573113173
BaseRepresentation
bin11011001110000010011001
3111102111220112
4123032002121
53311313020
6412534105
7114435605
oct33160231
914374815
107135385
114033a14
122481335
13162aa2a
14d3a505
1595e2c5
hex6ce099

7135385 has 16 divisors (see below), whose sum is σ = 8807184. Its totient is φ = 5548032.

The previous prime is 7135379. The next prime is 7135391. The reversal of 7135385 is 5835317.

It is an interprime number because it is at equal distance from previous prime (7135379) and next prime (7135391).

It can be written as a sum of positive squares in 8 ways, for example, as 107584 + 7027801 = 328^2 + 2651^2 .

It is a cyclic number.

It is not a de Polignac number, because 7135385 - 26 = 7135321 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 15 ways as a sum of consecutive naturals, for example, 41159 + ... + 41331.

It is an arithmetic number, because the mean of its divisors is an integer number (550449).

Almost surely, 27135385 is an apocalyptic number.

It is an amenable number.

7135385 is a deficient number, since it is larger than the sum of its proper divisors (1671799).

7135385 is a wasteful number, since it uses less digits than its factorization.

7135385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its digits is 12600, while the sum is 32.

The square root of 7135385 is about 2671.2141434187. The cubic root of 7135385 is about 192.5185004989.

The spelling of 7135385 in words is "seven million, one hundred thirty-five thousand, three hundred eighty-five".

Divisors: 1 5 73 113 173 365 565 865 8249 12629 19549 41245 63145 97745 1427077 7135385