Base | Representation |
---|---|
bin | 11010110010010001… |
… | …001011101010011111 |
3 | 2202020101020112010220 |
4 | 122302101023222133 |
5 | 432400211334242 |
6 | 21113520332423 |
7 | 2035500340452 |
oct | 326221135237 |
9 | 82211215126 |
10 | 28760652447 |
11 | 1121970295a |
12 | 56a7a74113 |
13 | 29346a5057 |
14 | 156b9d5499 |
15 | b34e19bec |
hex | 6b244ba9f |
28760652447 has 16 divisors (see below), whose sum is σ = 39644800512. Its totient is φ = 18532000800.
The previous prime is 28760652421. The next prime is 28760652457. The reversal of 28760652447 is 74425606782.
It is not a de Polignac number, because 28760652447 - 28 = 28760652191 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 28760652447.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28760652457) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 841203 + ... + 874724.
It is an arithmetic number, because the mean of its divisors is an integer number (2477800032).
Almost surely, 228760652447 is an apocalyptic number.
28760652447 is a deficient number, since it is larger than the sum of its proper divisors (10884148065).
28760652447 is a wasteful number, since it uses less digits than its factorization.
28760652447 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1716118.
The product of its (nonzero) digits is 4515840, while the sum is 51.
The spelling of 28760652447 in words is "twenty-eight billion, seven hundred sixty million, six hundred fifty-two thousand, four hundred forty-seven".
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