Base | Representation |
---|---|
bin | 111101010101000… |
… | …101000010001010 |
3 | 2122201010100121000 |
4 | 331111011002022 |
5 | 4101401421233 |
6 | 250033355430 |
7 | 34332544611 |
oct | 7525050212 |
9 | 2581110530 |
10 | 1028935818 |
11 | 488897789 |
12 | 248708b76 |
13 | 13522b981 |
14 | 9a920878 |
15 | 604e9d13 |
hex | 3d54508a |
1028935818 has 32 divisors (see below), whose sum is σ = 2360286720. Its totient is φ = 331914240.
The previous prime is 1028935801. The next prime is 1028935819. The reversal of 1028935818 is 8185398201.
It is a happy number.
1028935818 is a `hidden beast` number, since 1 + 0 + 289 + 358 + 18 = 666.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1028935819) 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, 305655 + ... + 309002.
It is an arithmetic number, because the mean of its divisors is an integer number (73758960).
Almost surely, 21028935818 is an apocalyptic number.
1028935818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
1028935818 is an abundant number, since it is smaller than the sum of its proper divisors (1331350902).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1028935818 is a wasteful number, since it uses less digits than its factorization.
1028935818 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 614699 (or 614693 counting only the distinct ones).
The product of its (nonzero) digits is 138240, while the sum is 45.
The square root of 1028935818 is about 32077.0294447600. The cubic root of 1028935818 is about 1009.5537086513.
The spelling of 1028935818 in words is "one billion, twenty-eight million, nine hundred thirty-five thousand, eight hundred eighteen".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.129 sec. • engine limits •