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7130055 = 351727961
BaseRepresentation
bin11011001100101111000111
3111102020121010
4123030233013
53311130210
6412453303
7114414222
oct33145707
914366533
107130055
11402aa09
12247a233
13162848a
14d385b9
1595c920
hex6ccbc7

7130055 has 16 divisors (see below), whose sum is σ = 12079584. Its totient is φ = 3578880.

The previous prime is 7130051. The next prime is 7130063. The reversal of 7130055 is 5500317.

It is a happy number.

It is not a de Polignac number, because 7130055 - 22 = 7130051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7130051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13726 + ... + 14235.

It is an arithmetic number, because the mean of its divisors is an integer number (754974).

Almost surely, 27130055 is an apocalyptic number.

7130055 is a deficient number, since it is larger than the sum of its proper divisors (4949529).

7130055 is a wasteful number, since it uses less digits than its factorization.

7130055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27986.

The product of its (nonzero) digits is 525, while the sum is 21.

The square root of 7130055 is about 2670.2162833748. The cubic root of 7130055 is about 192.4705526441.

The spelling of 7130055 in words is "seven million, one hundred thirty thousand, fifty-five".

Divisors: 1 3 5 15 17 51 85 255 27961 83883 139805 419415 475337 1426011 2376685 7130055