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7015385 = 513372917
BaseRepresentation
bin11010110000101111011001
3111012102022002
4122300233121
53243443020
6410210345
7113426006
oct32605731
914172262
107015385
113a61843
1224239b5
1315b8220
14d088ad
15938975
hex6b0bd9

7015385 has 16 divisors (see below), whose sum is σ = 9314256. Its totient is φ = 5038848.

The previous prime is 7015363. The next prime is 7015399. The reversal of 7015385 is 5835107.

7015385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 760384 + 6255001 = 872^2 + 2501^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7015385 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 15 ways as a sum of consecutive naturals, for example, 947 + ... + 3863.

It is an arithmetic number, because the mean of its divisors is an integer number (582141).

Almost surely, 27015385 is an apocalyptic number.

It is an amenable number.

7015385 is a deficient number, since it is larger than the sum of its proper divisors (2298871).

7015385 is a wasteful number, since it uses less digits than its factorization.

7015385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2972.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 7015385 is about 2648.6572069636. The cubic root of 7015385 is about 191.4331607117.

The spelling of 7015385 in words is "seven million, fifteen thousand, three hundred eighty-five".

Divisors: 1 5 13 37 65 185 481 2405 2917 14585 37921 107929 189605 539645 1403077 7015385