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18103164 = 2231788741
BaseRepresentation
bin100010100001…
…1101101111100
31021001201212120
41011003231330
514113300124
61444002540
7306605622
oct105035574
937051776
1018103164
11a2451a2
126090450
13399ac41
142593512
1518c8d79
hex1143b7c

18103164 has 24 divisors (see below), whose sum is σ = 44725968. Its totient is φ = 5679360.

The previous prime is 18103159. The next prime is 18103193. The reversal of 18103164 is 46130181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44167 + ... + 44574.

It is an arithmetic number, because the mean of its divisors is an integer number (1863582).

Almost surely, 218103164 is an apocalyptic number.

It is an amenable number.

18103164 is an abundant number, since it is smaller than the sum of its proper divisors (26622804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18103164 is a wasteful number, since it uses less digits than its factorization.

18103164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88765 (or 88763 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 18103164 is about 4254.7813104788. The cubic root of 18103164 is about 262.5738640210.

The spelling of 18103164 in words is "eighteen million, one hundred three thousand, one hundred sixty-four".

Divisors: 1 2 3 4 6 12 17 34 51 68 102 204 88741 177482 266223 354964 532446 1064892 1508597 3017194 4525791 6034388 9051582 18103164