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7107385 = 53494073
BaseRepresentation
bin11011000111001100111001
3111101002111111
4123013030321
53304414020
6412200321
7114261145
oct33071471
914332444
107107385
11401497a
1224690a1
13161b06c
14d30225
15955d5a
hex6c7339

7107385 has 8 divisors (see below), whose sum is σ = 8555400. Its totient is φ = 5668224.

The previous prime is 7107383. The next prime is 7107409. The reversal of 7107385 is 5837017.

It can be written as a sum of positive squares in 4 ways, for example, as 331776 + 6775609 = 576^2 + 2603^2 .

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 7107385 - 21 = 7107383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7107383) by changing a digit.

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, 292 + ... + 3781.

It is an arithmetic number, because the mean of its divisors is an integer number (1069425).

Almost surely, 27107385 is an apocalyptic number.

It is an amenable number.

7107385 is a deficient number, since it is larger than the sum of its proper divisors (1448015).

7107385 is a wasteful number, since it uses less digits than its factorization.

7107385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4427.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 7107385 is about 2665.9679292895. The cubic root of 7107385 is about 192.2663494511.

The spelling of 7107385 in words is "seven million, one hundred seven thousand, three hundred eighty-five".

Divisors: 1 5 349 1745 4073 20365 1421477 7107385