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18006027 = 313461693
BaseRepresentation
bin100010010110…
…0000000001011
31020212210121220
41010230000023
514102143102
61441533123
7306022464
oct104540013
936783556
1018006027
11a189216
1260441a3
133965970
142569d6b
1518aa1bc
hex112c00b

18006027 has 8 divisors (see below), whose sum is σ = 25854864. Its totient is φ = 11080608.

The previous prime is 18006019. The next prime is 18006031. The reversal of 18006027 is 72060081.

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

It is not a de Polignac number, because 18006027 - 23 = 18006019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18005988 and 18006006.

It is not an unprimeable number, because it can be changed into a prime (18006017) 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, 230808 + ... + 230885.

It is an arithmetic number, because the mean of its divisors is an integer number (3231858).

Almost surely, 218006027 is an apocalyptic number.

18006027 is a deficient number, since it is larger than the sum of its proper divisors (7848837).

18006027 is a wasteful number, since it uses less digits than its factorization.

18006027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461709.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 18006027 is about 4243.3509164339. The cubic root of 18006027 is about 262.1033865427.

The spelling of 18006027 in words is "eighteen million, six thousand, twenty-seven".

Divisors: 1 3 13 39 461693 1385079 6002009 18006027