Base | Representation |
---|---|
bin | 11010101001110001… |
… | …101100111110000000 |
3 | 2201212110011022011020 |
4 | 122221301230332000 |
5 | 432102223320103 |
6 | 21051430545440 |
7 | 2032120352325 |
oct | 325161547600 |
9 | 81773138136 |
10 | 28618182528 |
11 | 11156244121 |
12 | 5668208280 |
13 | 2911011720 |
14 | 1556b0ab4c |
15 | b27676753 |
hex | 6a9c6cf80 |
28618182528 has 64 divisors (see below), whose sum is σ = 81864526800. Its totient is φ = 8805593088.
The previous prime is 28618182521. The next prime is 28618182559. The reversal of 28618182528 is 82528181682.
It is a happy number.
It is a tau number, because it is divible by the number of its divisors (64).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28618182521) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2861413 + ... + 2871396.
Almost surely, 228618182528 is an apocalyptic number.
It is an amenable number.
28618182528 is an abundant number, since it is smaller than the sum of its proper divisors (53246344272).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
28618182528 is a wasteful number, since it uses less digits than its factorization.
28618182528 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5732839 (or 5732827 counting only the distinct ones).
The product of its digits is 983040, while the sum is 51.
The spelling of 28618182528 in words is "twenty-eight billion, six hundred eighteen million, one hundred eighty-two thousand, five hundred twenty-eight".
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