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2808828388 = 2216314512969
BaseRepresentation
bin1010011101101011…
…0101000111100100
321020202022021012001
42213122311013210
521223030002023
61142414535044
7126414435022
oct24732650744
97222267161
102808828388
111211568383
12664807484
13359bcb742
141c9081712
151168d06ad
hexa76b51e4

2808828388 has 24 divisors (see below), whose sum is σ = 4950681120. Its totient is φ = 1394366400.

The previous prime is 2808828317. The next prime is 2808828391. The reversal of 2808828388 is 8838288082.

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 7 ways as a sum of consecutive naturals, for example, 944568 + ... + 947536.

It is an arithmetic number, because the mean of its divisors is an integer number (206278380).

Almost surely, 22808828388 is an apocalyptic number.

It is an amenable number.

2808828388 is a deficient number, since it is larger than the sum of its proper divisors (2141852732).

2808828388 is a wasteful number, since it uses less digits than its factorization.

2808828388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4587 (or 4585 counting only the distinct ones).

The product of its (nonzero) digits is 3145728, while the sum is 55.

The square root of 2808828388 is about 52998.3809941398. The cubic root of 2808828388 is about 1410.9395324280.

The spelling of 2808828388 in words is "two billion, eight hundred eight million, eight hundred twenty-eight thousand, three hundred eighty-eight".

Divisors: 1 2 4 163 326 652 1451 2902 2969 5804 5938 11876 236513 473026 483947 946052 967894 1935788 4308019 8616038 17232076 702207097 1404414194 2808828388