Base | Representation |
---|---|
bin | 100010011011… |
… | …0010010101000 |
3 | 1020221221102200 |
4 | 1010312102220 |
5 | 14110020133 |
6 | 1442500200 |
7 | 306256365 |
oct | 104662250 |
9 | 36857380 |
10 | 18048168 |
11 | a207946 |
12 | 6064660 |
13 | 397bbb8 |
14 | 257b46c |
15 | 18b7913 |
hex | 11364a8 |
18048168 has 48 divisors (see below), whose sum is σ = 49077600. Its totient is φ = 5991840.
The previous prime is 18048161. The next prime is 18048181. The reversal of 18048168 is 86184081.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (18048161) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31323 + ... + 31893.
It is an arithmetic number, because the mean of its divisors is an integer number (1022450).
Almost surely, 218048168 is an apocalyptic number.
18048168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
It is an amenable number.
18048168 is an abundant number, since it is smaller than the sum of its proper divisors (31029432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
18048168 is a wasteful number, since it uses less digits than its factorization.
18048168 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1022 (or 1015 counting only the distinct ones).
The product of its (nonzero) digits is 12288, while the sum is 36.
The square root of 18048168 is about 4248.3135477504. The cubic root of 18048168 is about 262.3077013397.
The spelling of 18048168 in words is "eighteen million, forty-eight thousand, one hundred sixty-eight".
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