Base | Representation |
---|---|
bin | 11101000011100… |
… | …111010011110101 |
3 | 1020222021220001022 |
4 | 131003213103311 |
5 | 1444244033314 |
6 | 120212310525 |
7 | 15036366023 |
oct | 3503472365 |
9 | 1228256038 |
10 | 487486709 |
11 | 23019aa86 |
12 | 117312445 |
13 | 79cc3598 |
14 | 48a59713 |
15 | 2cbe578e |
hex | 1d0e74f5 |
487486709 has 2 divisors, whose sum is σ = 487486710. Its totient is φ = 487486708.
The previous prime is 487486673. The next prime is 487486711. The reversal of 487486709 is 907684784.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 331786225 + 155700484 = 18215^2 + 12478^2 .
It is a cyclic number.
It is not a de Polignac number, because 487486709 - 212 = 487482613 is a prime.
Together with 487486711, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (487486759) 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, 243743354 + 243743355.
It is an arithmetic number, because the mean of its divisors is an integer number (243743355).
Almost surely, 2487486709 is an apocalyptic number.
It is an amenable number.
487486709 is a deficient number, since it is larger than the sum of its proper divisors (1).
487486709 is an equidigital number, since it uses as much as digits as its factorization.
487486709 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2709504, while the sum is 53.
The square root of 487486709 is about 22079.1011818869. The cubic root of 487486709 is about 787.0233058255.
The spelling of 487486709 in words is "four hundred eighty-seven million, four hundred eighty-six thousand, seven hundred nine".
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