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18016201 = 712012143
BaseRepresentation
bin100010010111…
…0011111001001
31020220022120201
41010232133021
514103004301
61442052201
7306064240
oct104563711
936808521
1018016201
11a195925
12604a061
13396a498
14256d957
1518ad201
hex112e7c9

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".

Divisors: 1 7 1201 2143 8407 15001 2573743 18016201