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68164434922 = 2194740195177
BaseRepresentation
bin111111011110111010…
…101011101111101010
320111221111102001221211
4333132322223233222
52104100043404142
651151520223334
74632115064653
oct773672535752
9214844361854
1068164434922
11269aa056941
121126416ab4a
13657408457c
143428d2252a
151b8e3ce917
hexfdeeabbea

68164434922 has 32 divisors (see below), whose sum is σ = 110193281280. Its totient is φ = 31522291200.

The previous prime is 68164434857. The next prime is 68164434929. The reversal of 68164434922 is 22943446186.

It is not an unprimeable number, because it can be changed into a prime (68164434929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 668598 + ... + 763774.

It is an arithmetic number, because the mean of its divisors is an integer number (3443540040).

Almost surely, 268164434922 is an apocalyptic number.

68164434922 is a deficient number, since it is larger than the sum of its proper divisors (42028846358).

68164434922 is a wasteful number, since it uses less digits than its factorization.

68164434922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95646.

The product of its digits is 1990656, while the sum is 49.

The spelling of 68164434922 in words is "sixty-eight billion, one hundred sixty-four million, four hundred thirty-four thousand, nine hundred twenty-two".

Divisors: 1 2 19 38 47 94 401 802 893 1786 7619 15238 18847 37694 95177 190354 358093 716186 1808363 3616726 4473319 8946638 38165977 76331954 84993061 169986122 725153563 1450307126 1793800919 3587601838 34082217461 68164434922