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7141885 = 54730391
BaseRepresentation
bin11011001111100111111101
3111102211211021
4123033213331
53312020020
6413024141
7114463552
oct33174775
914384737
107141885
114038893
122485051
13163098a
14d3ca29
159611aa
hex6cf9fd

7141885 has 8 divisors (see below), whose sum is σ = 8752896. Its totient is φ = 5591760.

The previous prime is 7141867. The next prime is 7141889. The reversal of 7141885 is 5881417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7141885 - 211 = 7139837 is a prime.

It is a Duffinian number.

7141885 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7141885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7141889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14961 + ... + 15430.

It is an arithmetic number, because the mean of its divisors is an integer number (1094112).

Almost surely, 27141885 is an apocalyptic number.

It is an amenable number.

7141885 is a deficient number, since it is larger than the sum of its proper divisors (1611011).

7141885 is a wasteful number, since it uses less digits than its factorization.

7141885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30443.

The product of its digits is 8960, while the sum is 34.

The square root of 7141885 is about 2672.4305416605. The cubic root of 7141885 is about 192.5769411887.

The spelling of 7141885 in words is "seven million, one hundred forty-one thousand, eight hundred eighty-five".

Divisors: 1 5 47 235 30391 151955 1428377 7141885