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2808264668 = 221163824197
BaseRepresentation
bin1010011101100010…
…1011011111011100
321020201020121220112
42213120223133130
521222403432133
61142354505152
7126406566356
oct24730533734
97221217815
102808264668
1112112128a0
126645951b8
13359a61c91
141c8d760d6
1511681d648
hexa762b7dc

2808264668 has 12 divisors (see below), whose sum is σ = 5361232632. Its totient is φ = 1276483920.

The previous prime is 2808264661. The next prime is 2808264691. The reversal of 2808264668 is 8664628082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808264661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31912055 + ... + 31912142.

It is an arithmetic number, because the mean of its divisors is an integer number (446769386).

Almost surely, 22808264668 is an apocalyptic number.

It is an amenable number.

2808264668 is a deficient number, since it is larger than the sum of its proper divisors (2552967964).

2808264668 is a wasteful number, since it uses less digits than its factorization.

2808264668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63824212 (or 63824210 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 50.

The square root of 2808264668 is about 52993.0624516078. The cubic root of 2808264668 is about 1410.8451362434.

The spelling of 2808264668 in words is "two billion, eight hundred eight million, two hundred sixty-four thousand, six hundred sixty-eight".

Divisors: 1 2 4 11 22 44 63824197 127648394 255296788 702066167 1404132334 2808264668