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68068134012 = 22323923733659
BaseRepresentation
bin111111011001001011…
…010100110001111100
320111200210012110221110
4333121023110301330
52103400420242022
651134200202020
74626535410204
oct773113246174
9214623173843
1068068134012
112695a76160a
1211237a69310
13655a137698
14341a215404
151b85c0b00c
hexfd92d4c7c

68068134012 has 24 divisors (see below), whose sum is σ = 159490195200. Its totient is φ = 22594442416.

The previous prime is 68068134007. The next prime is 68068134019. The reversal of 68068134012 is 21043186086.

It is a super-2 number, since 2×680681340122 (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 (68068134019) 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, 11863962 + ... + 11869697.

It is an arithmetic number, because the mean of its divisors is an integer number (6645424800).

Almost surely, 268068134012 is an apocalyptic number.

It is an amenable number.

68068134012 is an abundant number, since it is smaller than the sum of its proper divisors (91422061188).

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

68068134012 is a wasteful number, since it uses less digits than its factorization.

68068134012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23733905 (or 23733903 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 39.

The spelling of 68068134012 in words is "sixty-eight billion, sixty-eight million, one hundred thirty-four thousand, twelve".

Divisors: 1 2 3 4 6 12 239 478 717 956 1434 2868 23733659 47467318 71200977 94934636 142401954 284803908 5672344501 11344689002 17017033503 22689378004 34034067006 68068134012