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18164103 = 3431391013
BaseRepresentation
bin100010101001…
…0100110000111
31021011211110120
41011102212013
514122222403
61445153023
7310251366
oct105224607
937154416
1018164103
11a286a61
1260bb773
1339bc8b9
1425ab7dd
1518dbe53
hex1152987

18164103 has 16 divisors (see below), whose sum is σ = 24984960. Its totient is φ = 11731104.

The previous prime is 18164101. The next prime is 18164119. The reversal of 18164103 is 30146181.

It is not a de Polignac number, because 18164103 - 21 = 18164101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18164101) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17425 + ... + 18437.

It is an arithmetic number, because the mean of its divisors is an integer number (1561560).

Almost surely, 218164103 is an apocalyptic number.

18164103 is a deficient number, since it is larger than the sum of its proper divisors (6820857).

18164103 is a wasteful number, since it uses less digits than its factorization.

18164103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1198.

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

The square root of 18164103 is about 4261.9365316720. The cubic root of 18164103 is about 262.8681600528.

The spelling of 18164103 in words is "eighteen million, one hundred sixty-four thousand, one hundred three".

Divisors: 1 3 43 129 139 417 1013 3039 5977 17931 43559 130677 140807 422421 6054701 18164103