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6805653057 = 3272330715299
BaseRepresentation
bin1100101011010011…
…00000011001000001
3122120022000222220100
412111221200121001
5102414221344212
63043152433013
7330436045050
oct62551403101
918508028810
106805653057
112982682965
12139b248769
13845c7aa58
14487c0a397
1529c729bdc
hex195a60641

6805653057 has 48 divisors (see below), whose sum is σ = 11762150400. Its totient is φ = 3707500896.

The previous prime is 6805653031. The next prime is 6805653059. The reversal of 6805653057 is 7503565086.

6805653057 is a `hidden beast` number, since 6 + 8 + 0 + 565 + 30 + 57 = 666.

It is not a de Polignac number, because 6805653057 - 212 = 6805648961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6805653059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 437194 + ... + 452492.

It is an arithmetic number, because the mean of its divisors is an integer number (245044800).

Almost surely, 26805653057 is an apocalyptic number.

It is an amenable number.

6805653057 is a deficient number, since it is larger than the sum of its proper divisors (4956497343).

6805653057 is a wasteful number, since it uses less digits than its factorization.

6805653057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15642 (or 15639 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 6805653057 is about 82496.3820843072. The cubic root of 6805653057 is about 1895.0613251667.

The spelling of 6805653057 in words is "six billion, eight hundred five million, six hundred fifty-three thousand, fifty-seven".

Divisors: 1 3 7 9 21 23 63 69 161 207 307 483 921 1449 2149 2763 6447 7061 15299 19341 21183 45897 49427 63549 107093 137691 148281 321279 351877 444843 963837 1055631 2463139 3166893 4696793 7389417 14090379 22168251 32877551 42271137 98632653 108026239 295897959 324078717 756183673 972236151 2268551019 6805653057