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18534055 = 56136047
BaseRepresentation
bin100011010110…
…0111010100111
31021212121221111
41012230322213
514221042210
61501125451
7313352101
oct106547247
937777844
1018534055
11a509a01
126259887
133abc0c7
142666571
15196188a
hex11acea7

18534055 has 8 divisors (see below), whose sum is σ = 22280832. Its totient is φ = 14800608.

The previous prime is 18534049. The next prime is 18534059. The reversal of 18534055 is 55043581.

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

It is a cyclic number.

It is not a de Polignac number, because 18534055 - 25 = 18534023 is a prime.

It is a super-2 number, since 2×185340552 = 687022389486050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18534059) 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, 42 + ... + 6088.

It is an arithmetic number, because the mean of its divisors is an integer number (2785104).

Almost surely, 218534055 is an apocalyptic number.

18534055 is a deficient number, since it is larger than the sum of its proper divisors (3746777).

18534055 is an equidigital number, since it uses as much as digits as its factorization.

18534055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6665.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 18534055 is about 4305.1196266771. The cubic root of 18534055 is about 264.6408091943.

The spelling of 18534055 in words is "eighteen million, five hundred thirty-four thousand, fifty-five".

Divisors: 1 5 613 3065 6047 30235 3706811 18534055