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4968668693 = 171373212873
BaseRepresentation
bin1001010000010011…
…11101111000010101
3110211021102112002102
410220021331320111
540133434344233
62141011451445
7234061662362
oct45011757025
913737375072
104968668693
11211a75836a
12b67bb6b85
1361250b961
14351c67469
151e13181e8
hex12827de15

4968668693 has 8 divisors (see below), whose sum is σ = 5264799768. Its totient is φ = 4672966144.

The previous prime is 4968668609. The next prime is 4968668729. The reversal of 4968668693 is 3968668694.

It can be written as a sum of positive squares in 4 ways, for example, as 3265208164 + 1703460529 = 57142^2 + 41273^2 .

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 4968668693 - 220 = 4967620117 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4968668993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83096 + ... + 129777.

It is an arithmetic number, because the mean of its divisors is an integer number (658099971).

Almost surely, 24968668693 is an apocalyptic number.

It is an amenable number.

4968668693 is a deficient number, since it is larger than the sum of its proper divisors (296131075).

4968668693 is a wasteful number, since it uses less digits than its factorization.

4968668693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214263.

The product of its digits is 80621568, while the sum is 65.

The square root of 4968668693 is about 70488.7841645747. The cubic root of 4968668693 is about 1706.3967413983.

Subtracting from 4968668693 its reverse (3968668694), we obtain a palindrome (999999999).

The spelling of 4968668693 in words is "four billion, nine hundred sixty-eight million, six hundred sixty-eight thousand, six hundred ninety-three".

Divisors: 1 17 1373 23341 212873 3618841 292274629 4968668693