Base | Representation |
---|---|
bin | 1100011010111001… |
… | …01010110110001111 |
3 | 122012201011001211012 |
4 | 12031130222312033 |
5 | 102124011222122 |
6 | 3021355515435 |
7 | 324145443104 |
oct | 61534526617 |
9 | 18181131735 |
10 | 6668070287 |
11 | 2911a5199a |
12 | 1361158b7b |
13 | 823608a28 |
14 | 473834aab |
15 | 2905ee7e2 |
hex | 18d72ad8f |
6668070287 has 8 divisors (see below), whose sum is σ = 6770323200. Its totient is φ = 6566263704.
The previous prime is 6668070281. The next prime is 6668070289. The reversal of 6668070287 is 7820708666.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 6668070287 - 212 = 6668066191 is a prime.
It is a super-2 number, since 2×66680702872 = 88926322704744524738, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6668070281) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81413 + ... + 141294.
It is an arithmetic number, because the mean of its divisors is an integer number (846290400).
Almost surely, 26668070287 is an apocalyptic number.
6668070287 is a deficient number, since it is larger than the sum of its proper divisors (102252913).
6668070287 is a wasteful number, since it uses less digits than its factorization.
6668070287 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 223165.
The product of its (nonzero) digits is 1354752, while the sum is 50.
The square root of 6668070287 is about 81658.2530244188. The cubic root of 6668070287 is about 1882.2041342237.
The spelling of 6668070287 in words is "six billion, six hundred sixty-eight million, seventy thousand, two hundred eighty-seven".
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