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7140055 = 513109847
BaseRepresentation
bin11011001111001011010111
3111102202022111
4123033023113
53311440210
6413011451
7114455326
oct33171327
914382274
107140055
11403747a
122483b87
13162cbb0
14d3c0bd
1596088a
hex6cf2d7

7140055 has 8 divisors (see below), whose sum is σ = 9227232. Its totient is φ = 5272608.

The previous prime is 7140053. The next prime is 7140059. The reversal of 7140055 is 5500417.

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 7140055 - 21 = 7140053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7140053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54859 + ... + 54988.

It is an arithmetic number, because the mean of its divisors is an integer number (1153404).

Almost surely, 27140055 is an apocalyptic number.

7140055 is a deficient number, since it is larger than the sum of its proper divisors (2087177).

7140055 is a wasteful number, since it uses less digits than its factorization.

7140055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109865.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 7140055 is about 2672.0881347740. The cubic root of 7140055 is about 192.5604914743.

The spelling of 7140055 in words is "seven million, one hundred forty thousand, fifty-five".

Divisors: 1 5 13 65 109847 549235 1428011 7140055