Base | Representation |
---|---|
bin | 11010001111001111… |
… | …100100011101101111 |
3 | 2200201102112001211020 |
4 | 122033033210131233 |
5 | 430144243332213 |
6 | 20535325425223 |
7 | 2015103531330 |
oct | 321717443557 |
9 | 80642461736 |
10 | 28173027183 |
11 | 10a47a37344 |
12 | 556310b213 |
13 | 286ca1cbb2 |
14 | 1513950287 |
15 | aed543923 |
hex | 68f3e476f |
28173027183 has 8 divisors (see below), whose sum is σ = 42930327168. Its totient is φ = 16098872664.
The previous prime is 28173027161. The next prime is 28173027247. The reversal of 28173027183 is 38172037182.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 28173027183 - 28 = 28173026927 is a prime.
It is a super-3 number, since 3×281730271833 (a number of 32 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28173007183) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670786341 + ... + 670786382.
It is an arithmetic number, because the mean of its divisors is an integer number (5366290896).
Almost surely, 228173027183 is an apocalyptic number.
28173027183 is a deficient number, since it is larger than the sum of its proper divisors (14757299985).
28173027183 is a wasteful number, since it uses less digits than its factorization.
28173027183 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1341572733.
The product of its (nonzero) digits is 112896, while the sum is 42.
Subtracting 28173027183 from its reverse (38172037182), we obtain a palindrome (9999009999).
The spelling of 28173027183 in words is "twenty-eight billion, one hundred seventy-three million, twenty-seven thousand, one hundred eighty-three".
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