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818368068 = 223716975741
BaseRepresentation
bin110000110001110…
…100111001000100
32010000220101221110
4300301310321010
53134000234233
6213112245020
726165004510
oct6061647104
92100811843
10818368068
1138aa47051
121aa0a0770
1310071457b
147a98b140
154bca4663
hex30c74e44

818368068 has 48 divisors (see below), whose sum is σ = 2183981184. Its totient is φ = 233640960.

The previous prime is 818368027. The next prime is 818368079. The reversal of 818368068 is 860863818.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 139678 + ... + 145418.

It is an arithmetic number, because the mean of its divisors is an integer number (45499608).

Almost surely, 2818368068 is an apocalyptic number.

It is an amenable number.

818368068 is an abundant number, since it is smaller than the sum of its proper divisors (1365613116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

818368068 is a wasteful number, since it uses less digits than its factorization.

818368068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7452 (or 7450 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 818368068 is about 28607.1331663975. The cubic root of 818368068 is about 935.3688262472.

The spelling of 818368068 in words is "eight hundred eighteen million, three hundred sixty-eight thousand, sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 1697 3394 5091 5741 6788 10182 11482 11879 17223 20364 22964 23758 34446 35637 40187 47516 68892 71274 80374 120561 142548 160748 241122 482244 9742477 19484954 29227431 38969908 58454862 68197339 116909724 136394678 204592017 272789356 409184034 818368068