Base | Representation |
---|---|
bin | 100010101000… |
… | …0001001000010 |
3 | 1021011022200020 |
4 | 1011100021002 |
5 | 14121412200 |
6 | 1445034310 |
7 | 310210155 |
oct | 105201102 |
9 | 37138606 |
10 | 18154050 |
11 | a27a452 |
12 | 60b5996 |
13 | 39b8155 |
14 | 25a7c9c |
15 | 18d8ea0 |
hex | 1150242 |
18154050 has 48 divisors (see below), whose sum is σ = 46252992. Its totient is φ = 4708800.
The previous prime is 18154049. The next prime is 18154051. The reversal of 18154050 is 5045181.
It is an interprime number because it is at equal distance from previous prime (18154049) and next prime (18154051).
It is a self number, because there is not a number n which added to its sum of digits gives 18154050.
It is not an unprimeable number, because it can be changed into a prime (18154051) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3915 + ... + 7185.
It is an arithmetic number, because the mean of its divisors is an integer number (963604).
Almost surely, 218154050 is an apocalyptic number.
18154050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 18154050, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23126496).
18154050 is an abundant number, since it is smaller than the sum of its proper divisors (28098942).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18154050 is a wasteful number, since it uses less digits than its factorization.
18154050 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3323 (or 3318 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 24.
The square root of 18154050 is about 4260.7569749987. The cubic root of 18154050 is about 262.8196559366.
The spelling of 18154050 in words is "eighteen million, one hundred fifty-four thousand, fifty".
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