Base | Representation |
---|---|
bin | 100000011010001… |
… | …1011110001010001 |
3 | 2210210022001210102 |
4 | 1000310123301101 |
5 | 4211344041212 |
6 | 255524342145 |
7 | 35643326126 |
oct | 10064336121 |
9 | 2723261712 |
10 | 1087487057 |
11 | 508949138 |
12 | 264244955 |
13 | 1443bc387 |
14 | a460274d |
15 | 657135c2 |
hex | 40d1bc51 |
1087487057 has 2 divisors, whose sum is σ = 1087487058. Its totient is φ = 1087487056.
The previous prime is 1087487053. The next prime is 1087487111. The reversal of 1087487057 is 7507847801.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 583753921 + 503733136 = 24161^2 + 22444^2 .
It is a cyclic number.
It is not a de Polignac number, because 1087487057 - 22 = 1087487053 is a prime.
It is not a weakly prime, because it can be changed into another prime (1087487053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543743528 + 543743529.
It is an arithmetic number, because the mean of its divisors is an integer number (543743529).
Almost surely, 21087487057 is an apocalyptic number.
It is an amenable number.
1087487057 is a deficient number, since it is larger than the sum of its proper divisors (1).
1087487057 is an equidigital number, since it uses as much as digits as its factorization.
1087487057 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 439040, while the sum is 47.
The square root of 1087487057 is about 32977.0686538388. The cubic root of 1087487057 is about 1028.3509783935.
The spelling of 1087487057 in words is "one billion, eighty-seven million, four hundred eighty-seven thousand, fifty-seven".
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