Base | Representation |
---|---|
bin | 100010100100… |
… | …0110011111101 |
3 | 1021002210111100 |
4 | 1011020303331 |
5 | 14114432104 |
6 | 1444243313 |
7 | 310023510 |
oct | 105106375 |
9 | 37083440 |
10 | 18124029 |
11 | a259940 |
12 | 60a0539 |
13 | 39a75a1 |
14 | 259ad77 |
15 | 18d0139 |
hex | 1148cfd |
18124029 has 24 divisors (see below), whose sum is σ = 32640192. Its totient is φ = 9414720.
The previous prime is 18124021. The next prime is 18124031. The reversal of 18124029 is 92042181.
It is not a de Polignac number, because 18124029 - 23 = 18124021 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 18123993 and 18124011.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18124021) by changing a digit.
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 23 ways as a sum of consecutive naturals, for example, 12384 + ... + 13769.
It is an arithmetic number, because the mean of its divisors is an integer number (1360008).
Almost surely, 218124029 is an apocalyptic number.
It is an amenable number.
18124029 is a deficient number, since it is larger than the sum of its proper divisors (14516163).
18124029 is a wasteful number, since it uses less digits than its factorization.
18124029 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 26177 (or 26174 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 18124029 is about 4257.2325517876. The cubic root of 18124029 is about 262.6747027512.
The spelling of 18124029 in words is "eighteen million, one hundred twenty-four thousand, twenty-nine".
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