Base | Representation |
---|---|
bin | 100001011100111110… |
… | …0011010101001000001 |
3 | 20212102120221101001022 |
4 | 1002321330122221001 |
5 | 2134111302140312 |
6 | 53000305115225 |
7 | 5122145161436 |
oct | 1027174325101 |
9 | 225376841038 |
10 | 71839099457 |
11 | 28515331784 |
12 | 11b0a928b15 |
13 | 6a0b477398 |
14 | 3696d89b8d |
15 | 1d06cde172 |
hex | 10b9f1aa41 |
71839099457 has 2 divisors, whose sum is σ = 71839099458. Its totient is φ = 71839099456.
The previous prime is 71839099417. The next prime is 71839099487. The reversal of 71839099457 is 75499093817.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 62812389376 + 9026710081 = 250624^2 + 95009^2 .
It is a cyclic number.
It is not a de Polignac number, because 71839099457 - 218 = 71838837313 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 71839099457.
It is not a weakly prime, because it can be changed into another prime (71839099417) 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, 35919549728 + 35919549729.
It is an arithmetic number, because the mean of its divisors is an integer number (35919549729).
Almost surely, 271839099457 is an apocalyptic number.
It is an amenable number.
71839099457 is a deficient number, since it is larger than the sum of its proper divisors (1).
71839099457 is an equidigital number, since it uses as much as digits as its factorization.
71839099457 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 17146080, while the sum is 62.
The spelling of 71839099457 in words is "seventy-one billion, eight hundred thirty-nine million, ninety-nine thousand, four hundred fifty-seven".
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