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68061796296 = 233133137434423
BaseRepresentation
bin111111011000110011…
…001001011111001000
320111200100021111020020
4333120303021133020
52103342304440141
651133412300440
74626430502664
oct773063113710
9214610244206
1068061796296
1126957122a2a
1211235911720
136558a28a60
1434194458a4
151b853a8266
hexfd8cc97c8

68061796296 has 256 divisors, whose sum is σ = 198829424640. Its totient is φ = 19255864320.

The previous prime is 68061796273. The next prime is 68061796303. The reversal of 68061796296 is 69269716086.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 15385941 + ... + 15390363.

It is an arithmetic number, because the mean of its divisors is an integer number (776677440).

Almost surely, 268061796296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68061796296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99414712320).

68061796296 is an abundant number, since it is smaller than the sum of its proper divisors (130767628344).

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

68061796296 is a wasteful number, since it uses less digits than its factorization.

68061796296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4556 (or 4552 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 68061796296 in words is "sixty-eight billion, sixty-one million, seven hundred ninety-six thousand, two hundred ninety-six".