Base | Representation |
---|---|
bin | 100101011110110000… |
… | …1011010001001010001 |
3 | 21200202102101001022011 |
4 | 1022331201122021101 |
5 | 2304320200003433 |
6 | 100550503542521 |
7 | 5546410514143 |
oct | 1127541321121 |
9 | 250672331264 |
10 | 80489062993 |
11 | 31153a83379 |
12 | 1372375aa41 |
13 | 778955a9c1 |
14 | 3c77ac4c93 |
15 | 21613c63cd |
hex | 12bd85a251 |
80489062993 has 2 divisors, whose sum is σ = 80489062994. Its totient is φ = 80489062992.
The previous prime is 80489062991. The next prime is 80489063029. The reversal of 80489062993 is 39926098408.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 60913695249 + 19575367744 = 246807^2 + 139912^2 .
It is a cyclic number.
It is not a de Polignac number, because 80489062993 - 21 = 80489062991 is a prime.
It is a super-2 number, since 2×804890629932 (a number of 23 digits) contains 22 as substring.
Together with 80489062991, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (80489062991) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40244531496 + 40244531497.
It is an arithmetic number, because the mean of its divisors is an integer number (40244531497).
Almost surely, 280489062993 is an apocalyptic number.
It is an amenable number.
80489062993 is a deficient number, since it is larger than the sum of its proper divisors (1).
80489062993 is an equidigital number, since it uses as much as digits as its factorization.
80489062993 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 6718464, while the sum is 58.
The spelling of 80489062993 in words is "eighty billion, four hundred eighty-nine million, sixty-two thousand, nine hundred ninety-three".
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