Base | Representation |
---|---|
bin | 10000111000110111… |
… | …000000010001111100 |
3 | 1201210202222010001120 |
4 | 100320313000101330 |
5 | 244114223443343 |
6 | 12155222310540 |
7 | 1211241601401 |
oct | 207067002174 |
9 | 51722863046 |
10 | 18133812348 |
11 | 7766078683 |
12 | 3620b88450 |
13 | 192cb823a2 |
14 | c405002a8 |
15 | 711edb683 |
hex | 438dc047c |
18133812348 has 48 divisors (see below), whose sum is σ = 45154013184. Its totient is φ = 5644235520.
The previous prime is 18133812313. The next prime is 18133812349. The reversal of 18133812348 is 84321833181.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (18133812349) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 324058 + ... + 375873.
It is an arithmetic number, because the mean of its divisors is an integer number (940708608).
Almost surely, 218133812348 is an apocalyptic number.
It is an amenable number.
18133812348 is an abundant number, since it is smaller than the sum of its proper divisors (27020200836).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18133812348 is a wasteful number, since it uses less digits than its factorization.
18133812348 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 700082 (or 700080 counting only the distinct ones).
The product of its digits is 110592, while the sum is 42.
The spelling of 18133812348 in words is "eighteen billion, one hundred thirty-three million, eight hundred twelve thousand, three hundred forty-eight".
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