Base | Representation |
---|---|
bin | 110101011110110010… |
… | …010001000011000101 |
3 | 12111020000220121102112 |
4 | 311132302101003011 |
5 | 1420101222411211 |
6 | 42214112550405 |
7 | 4102016555444 |
oct | 653662210305 |
9 | 174200817375 |
10 | 57424810181 |
11 | 22398898912 |
12 | b167552405 |
13 | 5552092c2b |
14 | 2aca86cd5b |
15 | 176162388b |
hex | d5ec910c5 |
57424810181 has 2 divisors, whose sum is σ = 57424810182. Its totient is φ = 57424810180.
The previous prime is 57424810141. The next prime is 57424810249. The reversal of 57424810181 is 18101842475.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 50290305025 + 7134505156 = 224255^2 + 84466^2 .
It is a cyclic number.
It is not a de Polignac number, because 57424810181 - 218 = 57424548037 is a prime.
It is a super-2 number, since 2×574248101812 (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 (57424810141) 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, 28712405090 + 28712405091.
It is an arithmetic number, because the mean of its divisors is an integer number (28712405091).
Almost surely, 257424810181 is an apocalyptic number.
It is an amenable number.
57424810181 is a deficient number, since it is larger than the sum of its proper divisors (1).
57424810181 is an equidigital number, since it uses as much as digits as its factorization.
57424810181 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 71680, while the sum is 41.
The spelling of 57424810181 in words is "fifty-seven billion, four hundred twenty-four million, eight hundred ten thousand, one hundred eighty-one".
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