Base | Representation |
---|---|
bin | 100010101001… |
… | …0100110011100 |
3 | 1021011211111100 |
4 | 1011102212130 |
5 | 14122222444 |
6 | 1445153100 |
7 | 310251426 |
oct | 105224634 |
9 | 37154440 |
10 | 18164124 |
11 | a286a80 |
12 | 60bb790 |
13 | 39bc904 |
14 | 25ab816 |
15 | 18dbe69 |
hex | 115299c |
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".
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