Base | Representation |
---|---|
bin | 1000100000010110010011… |
… | …00001000010100000001001 |
3 | 2110020001102211000120011222 |
4 | 10100023021201002200021 |
5 | 4422420103113110301 |
6 | 103440202514531425 |
7 | 3640203225001124 |
oct | 420131141024011 |
9 | 73201384016158 |
10 | 18703668488201 |
11 | 5a611aa292384 |
12 | 2120a90896b75 |
13 | a58996229098 |
14 | 489395dad3bb |
15 | 2267d305031b |
hex | 1102c9842809 |
18703668488201 has 8 divisors (see below), whose sum is σ = 18940713031680. Its totient is φ = 18466631176032.
The previous prime is 18703668488173. The next prime is 18703668488207. The reversal of 18703668488201 is 10288486630781.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-18703668488201 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (18703668488207) 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, 3495896 + ... + 7044758.
It is an arithmetic number, because the mean of its divisors is an integer number (2367589128960).
Almost surely, 218703668488201 is an apocalyptic number.
It is an amenable number.
18703668488201 is a deficient number, since it is larger than the sum of its proper divisors (237044543479).
18703668488201 is an equidigital number, since it uses as much as digits as its factorization.
18703668488201 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3615655.
The product of its (nonzero) digits is 24772608, while the sum is 62.
The spelling of 18703668488201 in words is "eighteen trillion, seven hundred three billion, six hundred sixty-eight million, four hundred eighty-eight thousand, two hundred one".
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