Base | Representation |
---|---|
bin | 1101000100111110000011… |
… | …01101110100011110000101 |
3 | 10202211020120101001202202020 |
4 | 12202133001231310132011 |
5 | 12232132444322421210 |
6 | 141055134002233353 |
7 | 6025462303160151 |
oct | 642370155643605 |
9 | 122736511052666 |
10 | 28758056060805 |
11 | 918824aa1a705 |
12 | 3285606955859 |
13 | 1307b47125916 |
14 | 715c7c430061 |
15 | 34d0e2b19770 |
hex | 1a27c1b74785 |
28758056060805 has 48 divisors (see below), whose sum is σ = 47670080290560. Its totient is φ = 14803827786496.
The previous prime is 28758056060791. The next prime is 28758056060821. The reversal of 28758056060805 is 50806065085782.
It is a happy number.
It is not a de Polignac number, because 28758056060805 - 28 = 28758056060549 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37758091 + ... + 38512199.
It is an arithmetic number, because the mean of its divisors is an integer number (993126672720).
Almost surely, 228758056060805 is an apocalyptic number.
It is an amenable number.
28758056060805 is a deficient number, since it is larger than the sum of its proper divisors (18912024229755).
28758056060805 is a wasteful number, since it uses less digits than its factorization.
28758056060805 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 757198 (or 757169 counting only the distinct ones).
The product of its (nonzero) digits is 32256000, while the sum is 60.
The spelling of 28758056060805 in words is "twenty-eight trillion, seven hundred fifty-eight billion, fifty-six million, sixty thousand, eight hundred five".
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