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68382289766 = 2724117018987
BaseRepresentation
bin111111101011111001…
…101110111101100110
320112111200100020121202
4333223321232331212
52110021331233031
651225301442502
74640401605200
oct775371567546
9215450306552
1068382289766
112700102446a
1211305110432
1365aa25076b
143449c31770
151ba35b42cb
hexfebe6ef66

68382289766 has 24 divisors (see below), whose sum is σ = 122230371816. Its totient is φ = 28591896480.

The previous prime is 68382289753. The next prime is 68382289769. The reversal of 68382289766 is 66798228386.

It is a super-2 number, since 2×683822897662 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68382289769) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8505476 + ... + 8513511.

It is an arithmetic number, because the mean of its divisors is an integer number (5092932159).

Almost surely, 268382289766 is an apocalyptic number.

68382289766 is a deficient number, since it is larger than the sum of its proper divisors (53848082050).

68382289766 is a wasteful number, since it uses less digits than its factorization.

68382289766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17019044 (or 17019037 counting only the distinct ones).

The product of its digits is 83607552, while the sum is 65.

The spelling of 68382289766 in words is "sixty-eight billion, three hundred eighty-two million, two hundred eighty-nine thousand, seven hundred sixty-six".

Divisors: 1 2 7 14 41 49 82 98 287 574 2009 4018 17018987 34037974 119132909 238265818 697778467 833930363 1395556934 1667860726 4884449269 9768898538 34191144883 68382289766