Base | Representation |
---|---|
bin | 1101001001001111… |
… | …00000101110011101 |
3 | 200012210120222210122 |
4 | 12210213200232131 |
5 | 103423014212011 |
6 | 3124123244325 |
7 | 336605466026 |
oct | 64447405635 |
9 | 20183528718 |
10 | 7056788381 |
11 | 2aa1411615 |
12 | 144b3796a5 |
13 | 885cca136 |
14 | 4ad2ddc4d |
15 | 2b47d53db |
hex | 1a49e0b9d |
7056788381 has 2 divisors, whose sum is σ = 7056788382. Its totient is φ = 7056788380.
The previous prime is 7056788377. The next prime is 7056788441. The reversal of 7056788381 is 1838876507.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 6604162756 + 452625625 = 81266^2 + 21275^2 .
It is a cyclic number.
It is not a de Polignac number, because 7056788381 - 22 = 7056788377 is a prime.
It is a super-2 number, since 2×70567883812 = 99596524508433202322, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (7056718381) 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, 3528394190 + 3528394191.
It is an arithmetic number, because the mean of its divisors is an integer number (3528394191).
Almost surely, 27056788381 is an apocalyptic number.
It is an amenable number.
7056788381 is a deficient number, since it is larger than the sum of its proper divisors (1).
7056788381 is an equidigital number, since it uses as much as digits as its factorization.
7056788381 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2257920, while the sum is 53.
The square root of 7056788381 is about 84004.6926129725. The cubic root of 7056788381 is about 1918.0902216966.
The spelling of 7056788381 in words is "seven billion, fifty-six million, seven hundred eighty-eight thousand, three hundred eighty-one".
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