Base | Representation |
---|---|
bin | 100101101001001010… |
… | …0111000111101010111 |
3 | 21201122202011010000001 |
4 | 1023102110320331113 |
5 | 2311024023242441 |
6 | 101045253032131 |
7 | 5561146352131 |
oct | 1132224707527 |
9 | 251582133001 |
10 | 80838102871 |
11 | 31313002189 |
12 | 13800625647 |
13 | 7813968b86 |
14 | 3cac1c2051 |
15 | 2181d70731 |
hex | 12d2538f57 |
80838102871 has 2 divisors, whose sum is σ = 80838102872. Its totient is φ = 80838102870.
The previous prime is 80838102869. The next prime is 80838102889. The reversal of 80838102871 is 17820183808.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80838102871 - 21 = 80838102869 is a prime.
Together with 80838102869, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80838102841) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40419051435 + 40419051436.
It is an arithmetic number, because the mean of its divisors is an integer number (40419051436).
Almost surely, 280838102871 is an apocalyptic number.
80838102871 is a deficient number, since it is larger than the sum of its proper divisors (1).
80838102871 is an equidigital number, since it uses as much as digits as its factorization.
80838102871 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 172032, while the sum is 46.
The spelling of 80838102871 in words is "eighty billion, eight hundred thirty-eight million, one hundred two thousand, eight hundred seventy-one".
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