Base | Representation |
---|---|
bin | 100101101000110111… |
… | …0010001111001100011 |
3 | 21201122001002212222011 |
4 | 1023101232101321203 |
5 | 2311013430401121 |
6 | 101044252053351 |
7 | 5560664335402 |
oct | 1132156217143 |
9 | 251561085864 |
10 | 80827981411 |
11 | 31308319841 |
12 | 137b9164257 |
13 | 7811833c48 |
14 | 3caab09639 |
15 | 21810217e1 |
hex | 12d1b91e63 |
80827981411 has 2 divisors, whose sum is σ = 80827981412. Its totient is φ = 80827981410.
The previous prime is 80827981387. The next prime is 80827981441. The reversal of 80827981411 is 11418972808.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80827981411 - 25 = 80827981379 is a prime.
It is not a weakly prime, because it can be changed into another prime (80827981441) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40413990705 + 40413990706.
It is an arithmetic number, because the mean of its divisors is an integer number (40413990706).
Almost surely, 280827981411 is an apocalyptic number.
80827981411 is a deficient number, since it is larger than the sum of its proper divisors (1).
80827981411 is an equidigital number, since it uses as much as digits as its factorization.
80827981411 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 258048, while the sum is 49.
The spelling of 80827981411 in words is "eighty billion, eight hundred twenty-seven million, nine hundred eighty-one thousand, four hundred eleven".
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