Base | Representation |
---|---|
bin | 100101010111110110… |
… | …0001100100110111111 |
3 | 21200011020201112120222 |
4 | 1022233230030212333 |
5 | 2303331243310421 |
6 | 100511454131555 |
7 | 5540562221135 |
oct | 1125754144677 |
9 | 250136645528 |
10 | 80257010111 |
11 | 31044a98633 |
12 | 13679ab0bbb |
13 | 77504601c5 |
14 | 3c54d5b755 |
15 | 214ad39cab |
hex | 12afb0c9bf |
80257010111 has 2 divisors, whose sum is σ = 80257010112. Its totient is φ = 80257010110.
The previous prime is 80257010027. The next prime is 80257010137. The reversal of 80257010111 is 11101075208.
It is an a-pointer prime, because the next prime (80257010137) can be obtained adding 80257010111 to its sum of digits (26).
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80257010111 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80257010311) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40128505055 + 40128505056.
It is an arithmetic number, because the mean of its divisors is an integer number (40128505056).
Almost surely, 280257010111 is an apocalyptic number.
80257010111 is a deficient number, since it is larger than the sum of its proper divisors (1).
80257010111 is an equidigital number, since it uses as much as digits as its factorization.
80257010111 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 560, while the sum is 26.
Adding to 80257010111 its reverse (11101075208), we get a palindrome (91358085319).
The spelling of 80257010111 in words is "eighty billion, two hundred fifty-seven million, ten thousand, one hundred eleven".
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