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8688888868 = 2211197474747
BaseRepresentation
bin10000001011110010…
…11110110000100100
3211102112200021202211
420011321132300210
5120243323420433
63554105013204
7425214223342
oct100571366044
924375607684
108688888868
1137597188a0
121825a84204
13a86191c7a
145c5d8c992
1535cc258cd
hex205e5ec24

8688888868 has 12 divisors (see below), whose sum is σ = 16587878832. Its totient is φ = 3949494920.

The previous prime is 8688888851. The next prime is 8688888889.

8688888868 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 8688888794 and 8688888803.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98737330 + ... + 98737417.

It is an arithmetic number, because the mean of its divisors is an integer number (1382323236).

Almost surely, 28688888868 is an apocalyptic number.

It is an amenable number.

8688888868 is a deficient number, since it is larger than the sum of its proper divisors (7898989964).

8688888868 is a wasteful number, since it uses less digits than its factorization.

8688888868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197474762 (or 197474760 counting only the distinct ones).

The product of its digits is 603979776, while the sum is 76.

The square root of 8688888868 is about 93214.2095820160. The cubic root of 8688888868 is about 2055.8341731765.

The spelling of 8688888868 in words is "eight billion, six hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred sixty-eight".

Divisors: 1 2 4 11 22 44 197474747 394949494 789898988 2172222217 4344444434 8688888868