Base | Representation |
---|---|
bin | 100010010111… |
… | …0011111001001 |
3 | 1020220022120201 |
4 | 1010232133021 |
5 | 14103004301 |
6 | 1442052201 |
7 | 306064240 |
oct | 104563711 |
9 | 36808521 |
10 | 18016201 |
11 | a195925 |
12 | 604a061 |
13 | 396a498 |
14 | 256d957 |
15 | 18ad201 |
hex | 112e7c9 |
18016201 has 8 divisors (see below), whose sum is σ = 20616704. Its totient is φ = 15422400.
The previous prime is 18016189. The next prime is 18016223. The reversal of 18016201 is 10261081.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 18016201 - 25 = 18016169 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18016001) 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 7 ways as a sum of consecutive naturals, for example, 7336 + ... + 9478.
It is an arithmetic number, because the mean of its divisors is an integer number (2577088).
Almost surely, 218016201 is an apocalyptic number.
It is an amenable number.
18016201 is a deficient number, since it is larger than the sum of its proper divisors (2600503).
18016201 is a wasteful number, since it uses less digits than its factorization.
18016201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3351.
The product of its (nonzero) digits is 96, while the sum is 19.
The square root of 18016201 is about 4244.5495638524. The cubic root of 18016201 is about 262.1527429381.
Adding to 18016201 its reverse (10261081), we get a palindrome (28277282).
The spelling of 18016201 in words is "eighteen million, sixteen thousand, two hundred one".
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