Base | Representation |
---|---|
bin | 110101001100111001… |
… | …010111001110000101 |
3 | 12110110010011110000102 |
4 | 311030321113032011 |
5 | 1413442404234311 |
6 | 42124232053445 |
7 | 4061413526153 |
oct | 651471271605 |
9 | 173403143012 |
10 | 57124680581 |
11 | 22254436021 |
12 | b0a2b34285 |
13 | 5504b4b157 |
14 | 2a9ca643d3 |
15 | 17450db43b |
hex | d4ce57385 |
57124680581 has 2 divisors, whose sum is σ = 57124680582. Its totient is φ = 57124680580.
The previous prime is 57124680541. The next prime is 57124680589. The reversal of 57124680581 is 18508642175.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 57089456356 + 35224225 = 238934^2 + 5935^2 .
It is a cyclic number.
It is not a de Polignac number, because 57124680581 - 214 = 57124664197 is a prime.
It is a super-2 number, since 2×571246805812 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (57124680589) 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, 28562340290 + 28562340291.
It is an arithmetic number, because the mean of its divisors is an integer number (28562340291).
Almost surely, 257124680581 is an apocalyptic number.
It is an amenable number.
57124680581 is a deficient number, since it is larger than the sum of its proper divisors (1).
57124680581 is an equidigital number, since it uses as much as digits as its factorization.
57124680581 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 537600, while the sum is 47.
The spelling of 57124680581 in words is "fifty-seven billion, one hundred twenty-four million, six hundred eighty thousand, five hundred eighty-one".
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