Base | Representation |
---|---|
bin | 11001111001001111… |
… | …110110011011101100 |
3 | 2122202201010122110220 |
4 | 121321033312123230 |
5 | 423420311031103 |
6 | 20434544131340 |
7 | 2003003055255 |
oct | 317117663354 |
9 | 78681118426 |
10 | 27804002028 |
11 | 108786a8280 |
12 | 547b606b50 |
13 | 281143520a |
14 | 14ba92db2c |
15 | acae4cc53 |
hex | 6793f66ec |
27804002028 has 48 divisors (see below), whose sum is σ = 70784305536. Its totient is φ = 8424207360.
The previous prime is 27804002003. The next prime is 27804002077. The reversal of 27804002028 is 82020040872.
It is a super-2 number, since 2×278040020282 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a self number, because there is not a number n which added to its sum of digits gives 27804002028.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1293900 + ... + 1315212.
It is an arithmetic number, because the mean of its divisors is an integer number (1474673032).
Almost surely, 227804002028 is an apocalyptic number.
It is an amenable number.
27804002028 is an abundant number, since it is smaller than the sum of its proper divisors (42980303508).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27804002028 is a wasteful number, since it uses less digits than its factorization.
27804002028 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31214 (or 31212 counting only the distinct ones).
The product of its (nonzero) digits is 14336, while the sum is 33.
The spelling of 27804002028 in words is "twenty-seven billion, eight hundred four million, two thousand, twenty-eight".
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