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2808224668 = 223718974491
BaseRepresentation
bin1010011101100010…
…0001101110011100
321020201011121001001
42213120201232130
521222401142133
61142354000044
7126406341634
oct24730415634
97221147031
102808224668
111211195837
12664576024
13359a49a02
141c8d656c4
1511681187d
hexa7621b9c

2808224668 has 12 divisors (see below), whose sum is σ = 5047214872. Its totient is φ = 1366163280.

The previous prime is 2808224659. The next prime is 2808224669. The reversal of 2808224668 is 8664228082.

2808224668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×28082246682 = 15772251571927420448, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2808224669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9487098 + ... + 9487393.

Almost surely, 22808224668 is an apocalyptic number.

It is an amenable number.

2808224668 is a deficient number, since it is larger than the sum of its proper divisors (2238990204).

2808224668 is a wasteful number, since it uses less digits than its factorization.

2808224668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18974532 (or 18974530 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 46.

The square root of 2808224668 is about 52992.6850423716. The cubic root of 2808224668 is about 1410.8384376733.

The spelling of 2808224668 in words is "two billion, eight hundred eight million, two hundred twenty-four thousand, six hundred sixty-eight".

Divisors: 1 2 4 37 74 148 18974491 37948982 75897964 702056167 1404112334 2808224668