Base | Representation |
---|---|
bin | 111111100010010110… |
… | …111110101010000111 |
3 | 20112002112002000220012 |
4 | 333202112332222013 |
5 | 2104204334342241 |
6 | 51201342100435 |
7 | 4633415665556 |
oct | 774226765207 |
9 | 215075060805 |
10 | 68222184071 |
11 | 26a2970a708 |
12 | 1127b57a71b |
13 | 6583023b72 |
14 | 3432875d9d |
15 | 1b944da6eb |
hex | fe25bea87 |
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".
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