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68222184071 = 224335338609
BaseRepresentation
bin111111100010010110…
…111110101010000111
320112002112002000220012
4333202112332222013
52104204334342241
651201342100435
74633415665556
oct774226765207
9215075060805
1068222184071
1126a2970a708
121127b57a71b
136583023b72
143432875d9d
151b944da6eb
hexfe25bea87

68222184071 has 8 divisors (see below), whose sum is σ = 68279848560. Its totient is φ = 68164548352.

The previous prime is 68222184049. The next prime is 68222184089. The reversal of 68222184071 is 17048122286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68222184071 is a prime.

It is a super-2 number, since 2×682221840712 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68222180071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7920215 + ... + 7928823.

It is an arithmetic number, because the mean of its divisors is an integer number (8534981070).

Almost surely, 268222184071 is an apocalyptic number.

68222184071 is a deficient number, since it is larger than the sum of its proper divisors (57664489).

68222184071 is a wasteful number, since it uses less digits than its factorization.

68222184071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14385.

The product of its (nonzero) digits is 86016, while the sum is 41.

The spelling of 68222184071 in words is "sixty-eight billion, two hundred twenty-two million, one hundred eighty-four thousand, seventy-one".

Divisors: 1 2243 3533 8609 7924519 19309987 30415597 68222184071