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2668844105 = 5611387317
BaseRepresentation
bin1001111100010011…
…0101010001001001
320212222220022211222
42133010311101021
520431211002410
61120454331425
7123064541414
oct23704652111
96788808758
102668844105
11114a547094
12625959b75
13336bc85c5
141b4642b7b
1510947d955
hex9f135449

2668844105 has 8 divisors (see below), whose sum is σ = 3203173512. Its totient is φ = 2134701568.

The previous prime is 2668844071. The next prime is 2668844111. The reversal of 2668844105 is 5014488662.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 110103049 + 2558741056 = 10493^2 + 50584^2 .

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 2668844105 - 228 = 2400408649 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13094 + ... + 74223.

It is an arithmetic number, because the mean of its divisors is an integer number (400396689).

Almost surely, 22668844105 is an apocalyptic number.

It is an amenable number.

2668844105 is a deficient number, since it is larger than the sum of its proper divisors (534329407).

2668844105 is an equidigital number, since it uses as much as digits as its factorization.

2668844105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93435.

The product of its (nonzero) digits is 368640, while the sum is 44.

The square root of 2668844105 is about 51660.8566034285. The cubic root of 2668844105 is about 1387.0998838713.

The spelling of 2668844105 in words is "two billion, six hundred sixty-eight million, eight hundred forty-four thousand, one hundred five".

Divisors: 1 5 6113 30565 87317 436585 533768821 2668844105