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6808104449 = 6919852539
BaseRepresentation
bin1100101011100101…
…10110111000000001
3122120110122112120122
412111302312320001
5102420333320244
63043321150025
7330465635006
oct62562667001
918513575518
106808104449
112983aa7703
1213a002b315
13846628793
144882878ad
1529ca611ee
hex195cb6e01

6808104449 has 4 divisors (see below), whose sum is σ = 6817957680. Its totient is φ = 6798251220.

The previous prime is 6808104439. The next prime is 6808104469. The reversal of 6808104449 is 9444018086.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6808104449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6808104439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4925579 + ... + 4926960.

It is an arithmetic number, because the mean of its divisors is an integer number (1704489420).

Almost surely, 26808104449 is an apocalyptic number.

It is an amenable number.

6808104449 is a deficient number, since it is larger than the sum of its proper divisors (9853231).

6808104449 is an equidigital number, since it uses as much as digits as its factorization.

6808104449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9853230.

The product of its (nonzero) digits is 221184, while the sum is 44.

The square root of 6808104449 is about 82511.2383193950. The cubic root of 6808104449 is about 1895.2888311567.

The spelling of 6808104449 in words is "six billion, eight hundred eight million, one hundred four thousand, four hundred forty-nine".

Divisors: 1 691 9852539 6808104449