Base | Representation |
---|---|
bin | 110011011011100000000… |
… | …0011110110111001000101 |
3 | 221000201212222100220111220 |
4 | 1212313000003312321011 |
5 | 1411302133010014121 |
6 | 23011110441550553 |
7 | 1326451421616153 |
oct | 146670003667105 |
9 | 27021788326456 |
10 | 7068443438661 |
11 | 228578a057890 |
12 | 961ab34a5459 |
13 | 3c3722438c67 |
14 | 1a61862243d3 |
15 | c3cee3416c6 |
hex | 66dc00f6e45 |
7068443438661 has 32 divisors (see below), whose sum is σ = 10455991280640. Its totient is φ = 4211152176000.
The previous prime is 7068443438629. The next prime is 7068443438689. The reversal of 7068443438661 is 1668343448607.
It is not a de Polignac number, because 7068443438661 - 25 = 7068443438629 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 7068443438595 and 7068443438604.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7068443436661) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90813961 + ... + 90891761.
It is an arithmetic number, because the mean of its divisors is an integer number (326749727520).
Almost surely, 27068443438661 is an apocalyptic number.
It is an amenable number.
7068443438661 is a deficient number, since it is larger than the sum of its proper divisors (3387547841979).
7068443438661 is a wasteful number, since it uses less digits than its factorization.
7068443438661 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 124537.
The product of its (nonzero) digits is 55738368, while the sum is 60.
The spelling of 7068443438661 in words is "seven trillion, sixty-eight billion, four hundred forty-three million, four hundred thirty-eight thousand, six hundred sixty-one".
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