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6538314220 = 2251427229093
BaseRepresentation
bin1100001011011011…
…01100000111101100
3121212122222202221221
412011231230013230
5101342302023340
63000442433124
7321011516404
oct60555540754
917778882857
106538314220
112855787279
1213258027a4
138027772a9
144604d9804
1528401d44a
hex185b6c1ec

6538314220 has 24 divisors (see below), whose sum is σ = 13740141744. Its totient is φ = 2613481536.

The previous prime is 6538314187. The next prime is 6538314221. The reversal of 6538314220 is 224138356.

It is not an unprimeable number, because it can be changed into a prime (6538314221) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 86007 + ... + 143086.

It is an arithmetic number, because the mean of its divisors is an integer number (572505906).

Almost surely, 26538314220 is an apocalyptic number.

It is an amenable number.

6538314220 is an abundant number, since it is smaller than the sum of its proper divisors (7201827524).

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

6538314220 is a wasteful number, since it uses less digits than its factorization.

6538314220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230529 (or 230527 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 6538314220 is about 80859.8430619303. The cubic root of 6538314220 is about 1869.9152754088.

The spelling of 6538314220 in words is "six billion, five hundred thirty-eight million, three hundred fourteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 1427 2854 5708 7135 14270 28540 229093 458186 916372 1145465 2290930 4581860 326915711 653831422 1307662844 1634578555 3269157110 6538314220