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18030214 = 254716481
BaseRepresentation
bin100010011000…
…1111010000110
31020221000210201
41010301322012
514103431324
61442241114
7306153136
oct104617206
936830721
1018030214
11a1a5404
12605619a
133973987
142574ac6
1518b2444
hex1131e86

18030214 has 8 divisors (see below), whose sum is σ = 27096408. Its totient is φ = 8998080.

The previous prime is 18030203. The next prime is 18030227. The reversal of 18030214 is 41203081.

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

It is a junction number, because it is equal to n+sod(n) for n = 18030191 and 18030200.

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, 7147 + ... + 9334.

It is an arithmetic number, because the mean of its divisors is an integer number (3387051).

Almost surely, 218030214 is an apocalyptic number.

18030214 is a deficient number, since it is larger than the sum of its proper divisors (9066194).

18030214 is a wasteful number, since it uses less digits than its factorization.

18030214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17030.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 18030214 is about 4246.1999481890. The cubic root of 18030214 is about 262.2206927864.

Adding to 18030214 its reverse (41203081), we get a palindrome (59233295).

The spelling of 18030214 in words is "eighteen million, thirty thousand, two hundred fourteen".

Divisors: 1 2 547 1094 16481 32962 9015107 18030214