Base | Representation |
---|---|
bin | 100011010011… |
… | …1100011111100 |
3 | 1021211111212020 |
4 | 1012213203330 |
5 | 14214341444 |
6 | 1500440140 |
7 | 313231131 |
oct | 106474374 |
9 | 37744766 |
10 | 18512124 |
11 | a4a4484 |
12 | 6249050 |
13 | 3ab2127 |
14 | 265c588 |
15 | 195a119 |
hex | 11a78fc |
18512124 has 24 divisors (see below), whose sum is σ = 43594320. Its totient is φ = 6113664.
The previous prime is 18512113. The next prime is 18512161. The reversal of 18512124 is 42121581.
It is a junction number, because it is equal to n+sod(n) for n = 18512094 and 18512103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5769 + ... + 8384.
It is an arithmetic number, because the mean of its divisors is an integer number (1816430).
Almost surely, 218512124 is an apocalyptic number.
It is an amenable number.
18512124 is an abundant number, since it is smaller than the sum of its proper divisors (25082196).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18512124 is a wasteful number, since it uses less digits than its factorization.
18512124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14269 (or 14267 counting only the distinct ones).
The product of its digits is 640, while the sum is 24.
The square root of 18512124 is about 4302.5717890583. The cubic root of 18512124 is about 264.5363864927.
The spelling of 18512124 in words is "eighteen million, five hundred twelve thousand, one hundred twenty-four".
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