Base | Representation |
---|---|
bin | 100101011100110110… |
… | …1010011010011111111 |
3 | 21200120221221221222121 |
4 | 1022321231103103333 |
5 | 2304202304244441 |
6 | 100540300223411 |
7 | 5545002555124 |
oct | 1127155232377 |
9 | 250527857877 |
10 | 80425071871 |
11 | 31120946951 |
12 | 1370623ab67 |
13 | 7779214231 |
14 | 3c6d3c874b |
15 | 215a985dd1 |
hex | 12b9b534ff |
80425071871 has 2 divisors, whose sum is σ = 80425071872. Its totient is φ = 80425071870.
The previous prime is 80425071841. The next prime is 80425071907. The reversal of 80425071871 is 17817052408.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80425071871 - 219 = 80424547583 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80425071841) 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, 40212535935 + 40212535936.
It is an arithmetic number, because the mean of its divisors is an integer number (40212535936).
Almost surely, 280425071871 is an apocalyptic number.
80425071871 is a deficient number, since it is larger than the sum of its proper divisors (1).
80425071871 is an equidigital number, since it uses as much as digits as its factorization.
80425071871 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 125440, while the sum is 43.
The spelling of 80425071871 in words is "eighty billion, four hundred twenty-five million, seventy-one thousand, eight hundred seventy-one".
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