Base | Representation |
---|---|
bin | 11010101001011001… |
… | …100001001010110111 |
3 | 2201212000020012121101 |
4 | 122221121201022313 |
5 | 432044112431433 |
6 | 21051043030531 |
7 | 2032012436101 |
oct | 325131411267 |
9 | 81760205541 |
10 | 28611842743 |
11 | 11152703a30 |
12 | 566606b447 |
13 | 290c901b83 |
14 | 1555d3a571 |
15 | b26d2307d |
hex | 6a96612b7 |
28611842743 has 64 divisors (see below), whose sum is σ = 34003307520. Its totient is φ = 23825894400.
The previous prime is 28611842719. The next prime is 28611842761. The reversal of 28611842743 is 34724811682.
It is not a de Polignac number, because 28611842743 - 25 = 28611842711 is a prime.
It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 28611842693 and 28611842702.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (28611849743) by changing a digit.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 90258021 + ... + 90258337.
It is an arithmetic number, because the mean of its divisors is an integer number (531301680).
Almost surely, 228611842743 is an apocalyptic number.
28611842743 is a deficient number, since it is larger than the sum of its proper divisors (5391464777).
28611842743 is a wasteful number, since it uses less digits than its factorization.
28611842743 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 568.
The product of its digits is 516096, while the sum is 46.
The spelling of 28611842743 in words is "twenty-eight billion, six hundred eleven million, eight hundred forty-two thousand, seven hundred forty-three".
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