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68065929352 = 23347178713721
BaseRepresentation
bin111111011001000010…
…111010100010001000
320111200122001110201101
4333121002322202020
52103344334214402
651134041031144
74626510565501
oct773102724210
9214618043641
1068065929352
1126959496183
12112371854b4
136559845055
143419bddba8
151b85922b87
hexfd90ba888

68065929352 has 32 divisors (see below), whose sum is σ = 128072365920. Its totient is φ = 33913425280.

The previous prime is 68065929287. The next prime is 68065929391. The reversal of 68065929352 is 25392956086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68065929293 and 68065929302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4953852 + ... + 4967572.

It is an arithmetic number, because the mean of its divisors is an integer number (4002261435).

Almost surely, 268065929352 is an apocalyptic number.

It is an amenable number.

68065929352 is a deficient number, since it is larger than the sum of its proper divisors (60006436568).

68065929352 is a wasteful number, since it uses less digits than its factorization.

68065929352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15861 (or 15857 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 68065929352 in words is "sixty-eight billion, sixty-five million, nine hundred twenty-nine thousand, three hundred fifty-two".

Divisors: 1 2 4 8 347 694 1388 1787 2776 3574 7148 13721 14296 27442 54884 109768 620089 1240178 2480356 4761187 4960712 9522374 19044748 24519427 38089496 49038854 98077708 196155416 8508241169 17016482338 34032964676 68065929352