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18164124 = 22321145869
BaseRepresentation
bin100010101001…
…0100110011100
31021011211111100
41011102212130
514122222444
61445153100
7310251426
oct105224634
937154440
1018164124
11a286a80
1260bb790
1339bc904
1425ab816
1518dbe69
hex115299c

18164124 has 36 divisors (see below), whose sum is σ = 50090040. Its totient is φ = 5504160.

The previous prime is 18164119. The next prime is 18164129. The reversal of 18164124 is 42146181.

It is a happy number.

18164124 is a `hidden beast` number, since 18 + 1 + 641 + 2 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (18164119) and next prime (18164129).

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18164129) 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 11 ways as a sum of consecutive naturals, for example, 22539 + ... + 23330.

It is an arithmetic number, because the mean of its divisors is an integer number (1391390).

Almost surely, 218164124 is an apocalyptic number.

It is an amenable number.

18164124 is an abundant number, since it is smaller than the sum of its proper divisors (31925916).

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

18164124 is a wasteful number, since it uses less digits than its factorization.

18164124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45890 (or 45885 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 18164124 is about 4261.9389953400. The cubic root of 18164124 is about 262.8682613557.

The spelling of 18164124 in words is "eighteen million, one hundred sixty-four thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 99 132 198 396 45869 91738 137607 183476 275214 412821 504559 550428 825642 1009118 1513677 1651284 2018236 3027354 4541031 6054708 9082062 18164124