| Base | Representation |
|---|---|
| bin | 1100001011110111… |
| … | …11100101011100010 |
| 3 | 121212221000200022200 |
| 4 | 12011323330223202 |
| 5 | 101344231131231 |
| 6 | 3001054514030 |
| 7 | 321055345044 |
| oct | 60573745342 |
| 9 | 17787020280 |
| 10 | 6542052066 |
| 11 | 28578aa600 |
| 12 | 1326b05916 |
| 13 | 803485734 |
| 14 | 460bcda94 |
| 15 | 28450abe6 |
| hex | 185efcae2 |
6542052066 has 72 divisors (see below), whose sum is σ = 16001459292. Its totient is φ = 1928836800.
The previous prime is 6542052061. The next prime is 6542052073. The reversal of 6542052066 is 6602502456.
6542052066 is a `hidden beast` number, since 6 + 54 + 20 + 520 + 66 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 5988438225 + 553613841 = 77385^2 + 23529^2 .
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a self number, because there is not a number n which added to its sum of digits gives 6542052066.
It is not an unprimeable number, because it can be changed into a prime (6542052061) 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 35 ways as a sum of consecutive naturals, for example, 39996 + ... + 121176.
Almost surely, 26542052066 is an apocalyptic number.
6542052066 is a gapful number since it is divisible by the number (66) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 6542052066, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8000729646).
6542052066 is an abundant number, since it is smaller than the sum of its proper divisors (9459407226).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6542052066 is a wasteful number, since it uses less digits than its factorization.
6542052066 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 81248 (or 81234 counting only the distinct ones).
The product of its (nonzero) digits is 86400, while the sum is 36.
The square root of 6542052066 is about 80882.9528763633. The cubic root of 6542052066 is about 1870.2715407294.
The spelling of 6542052066 in words is "six billion, five hundred forty-two million, fifty-two thousand, sixty-six".
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