Base | Representation |
---|---|
bin | 10001011100011010… |
… | …111011101000100100 |
3 | 1210100100121120210222 |
4 | 101130122323220210 |
5 | 301324442324220 |
6 | 12334334103512 |
7 | 1232105024363 |
oct | 213432735044 |
9 | 53310546728 |
10 | 18730433060 |
11 | 7a41928649 |
12 | 376894ab98 |
13 | 19c6666ab1 |
14 | c998477da |
15 | 74958ce25 |
hex | 45c6bba24 |
18730433060 has 48 divisors (see below), whose sum is σ = 41721039360. Its totient is φ = 7039034880.
The previous prime is 18730433047. The next prime is 18730433069. The reversal of 18730433060 is 6033403781.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 18730433060.
It is not an unprimeable number, because it can be changed into a prime (18730433069) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145901 + ... + 242379.
It is an arithmetic number, because the mean of its divisors is an integer number (869188320).
Almost surely, 218730433060 is an apocalyptic number.
18730433060 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 18730433060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20860519680).
18730433060 is an abundant number, since it is smaller than the sum of its proper divisors (22990606300).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18730433060 is a wasteful number, since it uses less digits than its factorization.
18730433060 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 97076 (or 97074 counting only the distinct ones).
The product of its (nonzero) digits is 36288, while the sum is 35.
The spelling of 18730433060 in words is "eighteen billion, seven hundred thirty million, four hundred thirty-three thousand, sixty".
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