Base | Representation |
---|---|
bin | 100101100101011010… |
… | …0011111110111100111 |
3 | 21201022222012002221001 |
4 | 1023022310133313213 |
5 | 2310244303432413 |
6 | 101024553534131 |
7 | 5555060063563 |
oct | 1131264376747 |
9 | 251288162831 |
10 | 80712170983 |
11 | 31258a09744 |
12 | 13786414347 |
13 | 77c3845c72 |
14 | 3c995a06a3 |
15 | 2175c974dd |
hex | 12cad1fde7 |
80712170983 has 2 divisors, whose sum is σ = 80712170984. Its totient is φ = 80712170982.
The previous prime is 80712170963. The next prime is 80712171049. The reversal of 80712170983 is 38907121708.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80712170983 - 29 = 80712170471 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80712170953) by changing a digit.
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 as a sum of consecutive naturals, namely, 40356085491 + 40356085492.
It is an arithmetic number, because the mean of its divisors is an integer number (40356085492).
Almost surely, 280712170983 is an apocalyptic number.
80712170983 is a deficient number, since it is larger than the sum of its proper divisors (1).
80712170983 is an equidigital number, since it uses as much as digits as its factorization.
80712170983 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 169344, while the sum is 46.
It can be divided in two parts, 80712 and 170983, that added together give a triangular number (251695 = T709).
The spelling of 80712170983 in words is "eighty billion, seven hundred twelve million, one hundred seventy thousand, nine hundred eighty-three".
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