Base | Representation |
---|---|
bin | 10011100101110… |
… | …11010011111111 |
3 | 102110020121002002 |
4 | 21302323103333 |
5 | 314033020322 |
6 | 24150252515 |
7 | 4033624124 |
oct | 1162732377 |
9 | 373217062 |
10 | 164345087 |
11 | 8484a995 |
12 | 4705713b |
13 | 2808241a |
14 | 17b8074b |
15 | e664c92 |
hex | 9cbb4ff |
164345087 has 2 divisors, whose sum is σ = 164345088. Its totient is φ = 164345086.
The previous prime is 164345057. The next prime is 164345101. The reversal of 164345087 is 780543461.
It is a strong prime.
It is an emirp because it is prime and its reverse (780543461) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 164345087 - 26 = 164345023 is a prime.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 164345087.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (164345047) 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, 82172543 + 82172544.
It is an arithmetic number, because the mean of its divisors is an integer number (82172544).
Almost surely, 2164345087 is an apocalyptic number.
164345087 is a deficient number, since it is larger than the sum of its proper divisors (1).
164345087 is an equidigital number, since it uses as much as digits as its factorization.
164345087 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 80640, while the sum is 38.
The square root of 164345087 is about 12819.7147784184. The cubic root of 164345087 is about 547.7540220848.
The spelling of 164345087 in words is "one hundred sixty-four million, three hundred forty-five thousand, eighty-seven".
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