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6804678444 = 223567056537
BaseRepresentation
bin1100101011001011…
…10010011100101100
3122120020012110222120
412111211302130230
5102413444202234
63043115512540
7330424545444
oct62545623454
918506173876
106804678444
1129820776a3
12139aa58750
138459c9265
14487a35124
1529c5d6049
hex19597272c

6804678444 has 12 divisors (see below), whose sum is σ = 15877583064. Its totient is φ = 2268226144.

The previous prime is 6804678421. The next prime is 6804678479. The reversal of 6804678444 is 4448764086.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×68046784442 = 92607297452476522272, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283528257 + ... + 283528280.

It is an arithmetic number, because the mean of its divisors is an integer number (1323131922).

Almost surely, 26804678444 is an apocalyptic number.

It is an amenable number.

6804678444 is an abundant number, since it is smaller than the sum of its proper divisors (9072904620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6804678444 is a wasteful number, since it uses less digits than its factorization.

6804678444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567056544 (or 567056542 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 51.

The square root of 6804678444 is about 82490.4748683143. The cubic root of 6804678444 is about 1894.9708592182.

The spelling of 6804678444 in words is "six billion, eight hundred four million, six hundred seventy-eight thousand, four hundred forty-four".

Divisors: 1 2 3 4 6 12 567056537 1134113074 1701169611 2268226148 3402339222 6804678444