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18030134 = 218149807
BaseRepresentation
bin100010011000…
…1111000110110
31020221000200202
41010301320312
514103431014
61442240502
7306152663
oct104617066
936830622
1018030134
11a1a5341
126056132
133973925
142574a6a
1518b23de
hex1131e36

18030134 has 8 divisors (see below), whose sum is σ = 27195168. Its totient is φ = 8965080.

The previous prime is 18030121. The next prime is 18030143. The reversal of 18030134 is 43103081.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24542 + ... + 25265.

It is an arithmetic number, because the mean of its divisors is an integer number (3399396).

Almost surely, 218030134 is an apocalyptic number.

18030134 is a deficient number, since it is larger than the sum of its proper divisors (9165034).

18030134 is a wasteful number, since it uses less digits than its factorization.

18030134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49990.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 18030134 is about 4246.1905279909. The cubic root of 18030134 is about 262.2203049617.

The spelling of 18030134 in words is "eighteen million, thirty thousand, one hundred thirty-four".

Divisors: 1 2 181 362 49807 99614 9015067 18030134