Base | Representation |
---|---|
bin | 10001000111000010… |
… | …101010000111010000 |
3 | 1202102100200111211101 |
4 | 101013002222013100 |
5 | 300111131421204 |
6 | 12235002154144 |
7 | 1220161166260 |
oct | 210702520720 |
9 | 52370614741 |
10 | 18371748304 |
11 | 7878411468 |
12 | 36887b2954 |
13 | 196a25c8b0 |
14 | c63d597a0 |
15 | 727d3aea4 |
hex | 4470aa1d0 |
18371748304 has 80 divisors (see below), whose sum is σ = 44364382720. Its totient is φ = 7175900160.
The previous prime is 18371748301. The next prime is 18371748313. The reversal of 18371748304 is 40384717381.
It is a super-2 number, since 2×183717483042 (a number of 21 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18371748301) 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 15 ways as a sum of consecutive naturals, for example, 35164 + ... + 194884.
It is an arithmetic number, because the mean of its divisors is an integer number (554554784).
Almost surely, 218371748304 is an apocalyptic number.
18371748304 is a gapful number since it is divisible by the number (14) 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 18371748304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22182191360).
18371748304 is an abundant number, since it is smaller than the sum of its proper divisors (25992634416).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18371748304 is a wasteful number, since it uses less digits than its factorization.
18371748304 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 159828 (or 159822 counting only the distinct ones).
The product of its (nonzero) digits is 451584, while the sum is 46.
The spelling of 18371748304 in words is "eighteen billion, three hundred seventy-one million, seven hundred forty-eight thousand, three hundred four".
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