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18048142 = 271289153
BaseRepresentation
bin100010011011…
…0010010001110
31020221221101201
41010312102032
514110020032
61442500114
7306256330
oct104662216
936857351
1018048142
11a207922
12606463a
13397bb98
14257b450
1518b78e7
hex113648e

18048142 has 8 divisors (see below), whose sum is σ = 30939696. Its totient is φ = 7734912.

The previous prime is 18048139. The next prime is 18048161. The reversal of 18048142 is 24184081.

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

It is a self number, because there is not a number n which added to its sum of digits gives 18048142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644563 + ... + 644590.

It is an arithmetic number, because the mean of its divisors is an integer number (3867462).

Almost surely, 218048142 is an apocalyptic number.

18048142 is a deficient number, since it is larger than the sum of its proper divisors (12891554).

18048142 is a wasteful number, since it uses less digits than its factorization.

18048142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289162.

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 18048142 is about 4248.3104877116. The cubic root of 18048142 is about 262.3075753805.

The spelling of 18048142 in words is "eighteen million, forty-eight thousand, one hundred forty-two".

Divisors: 1 2 7 14 1289153 2578306 9024071 18048142