Base | Representation |
---|---|
bin | 1110110110101111… |
… | …01011000000001001 |
3 | 202120211002102210101 |
4 | 13123113223000021 |
5 | 112313144224144 |
6 | 3355220045401 |
7 | 401431431424 |
oct | 73327530011 |
9 | 22524072711 |
10 | 7975383049 |
11 | 3422994367 |
12 | 1666b33861 |
13 | 9a140438a |
14 | 5592da9bb |
15 | 31a2866d4 |
hex | 1db5eb009 |
7975383049 has 2 divisors, whose sum is σ = 7975383050. Its totient is φ = 7975383048.
The previous prime is 7975383023. The next prime is 7975383067. The reversal of 7975383049 is 9403835797.
It is a happy number.
7975383049 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 7358208400 + 617174649 = 85780^2 + 24843^2 .
It is an emirp because it is prime and its reverse (9403835797) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 7975383049 - 29 = 7975382537 is a prime.
It is not a weakly prime, because it can be changed into another prime (7975383149) 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, 3987691524 + 3987691525.
It is an arithmetic number, because the mean of its divisors is an integer number (3987691525).
Almost surely, 27975383049 is an apocalyptic number.
It is an amenable number.
7975383049 is a deficient number, since it is larger than the sum of its proper divisors (1).
7975383049 is an equidigital number, since it uses as much as digits as its factorization.
7975383049 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 5715360, while the sum is 55.
The square root of 7975383049 is about 89305.0001343710. Note that the first 3 decimals coincide. The cubic root of 7975383049 is about 1997.9464796654.
The spelling of 7975383049 in words is "seven billion, nine hundred seventy-five million, three hundred eighty-three thousand, forty-nine".
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