Base | Representation |
---|---|
bin | 10000111001001110… |
… | …111111100001010000 |
3 | 1201211012210121001001 |
4 | 100321032333201100 |
5 | 244122331210223 |
6 | 12200005151344 |
7 | 1211346211633 |
oct | 207116774120 |
9 | 51735717031 |
10 | 18140100688 |
11 | 7769683156 |
12 | 36230bb554 |
13 | 19312746b8 |
14 | c41299c1a |
15 | 71282e9ad |
hex | 4393bf850 |
18140100688 has 20 divisors (see below), whose sum is σ = 35162912128. Its totient is φ = 9065800800.
The previous prime is 18140100673. The next prime is 18140100691. The reversal of 18140100688 is 88600104181.
It is a congruent number.
It is an unprimeable number.
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 3 ways as a sum of consecutive naturals, for example, 230238 + ... + 298813.
Almost surely, 218140100688 is an apocalyptic number.
It is an amenable number.
18140100688 is a deficient number, since it is larger than the sum of its proper divisors (17022811440).
18140100688 is a wasteful number, since it uses less digits than its factorization.
18140100688 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 531202 (or 531196 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 37.
It can be divided in two parts, 18140 and 100688, that added together give a triangular number (118828 = T487).
The spelling of 18140100688 in words is "eighteen billion, one hundred forty million, one hundred thousand, six hundred eighty-eight".
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