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68117710122 = 2327112191132081
BaseRepresentation
bin111111011100001000…
…011100010100101010
320111211020111012120200
4333130020130110222
52104001113210442
651143130533030
74631006661030
oct773410342452
9214736435520
1068117710122
1126985742900
1211250597176
1365674a4b67
143422a3c550
151b8a25034c
hexfdc21c52a

68117710122 has 288 divisors, whose sum is σ = 196979852160. Its totient is φ = 16605388800.

The previous prime is 68117710117. The next prime is 68117710123. The reversal of 68117710122 is 22101771186.

68117710122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (68117710123) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 32732122 + ... + 32734202.

It is an arithmetic number, because the mean of its divisors is an integer number (683957820).

Almost surely, 268117710122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68117710122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (98489926080).

68117710122 is an abundant number, since it is smaller than the sum of its proper divisors (128862142038).

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

68117710122 is a wasteful number, since it uses less digits than its factorization.

68117710122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2250 (or 2236 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The spelling of 68117710122 in words is "sixty-eight billion, one hundred seventeen million, seven hundred ten thousand, one hundred twenty-two".