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68368474845984 = 2532357753663749
BaseRepresentation
bin11111000101110010001101…
…01010000011001100100000
322222001221222120012112110110
433202321012222003030200
532430122114030032414
6401224013241131320
720254313353445655
oct1742710652031440
9288057876175413
1068368474845984
111a8699a8762945
127802327a89b40
132c1c17275a2a1
1412c50a235dc2c
157d864a970459
hex3e2e46a83320

68368474845984 has 96 divisors (see below), whose sum is σ = 187594732080000. Its totient is φ = 21760864468992.

The previous prime is 68368474845901. The next prime is 68368474846037. The reversal of 68368474845984 is 48954847486386.

It is a happy number.

68368474845984 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 68368474845897 and 68368474845906.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25557859 + ... + 28105890.

It is an arithmetic number, because the mean of its divisors is an integer number (1954111792500).

Almost surely, 268368474845984 is an apocalyptic number.

It is an amenable number.

68368474845984 is an abundant number, since it is smaller than the sum of its proper divisors (119226257234016).

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

68368474845984 is a wasteful number, since it uses less digits than its factorization.

68368474845984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53664362 (or 53664354 counting only the distinct ones).

The product of its digits is 35672555520, while the sum is 84.

The spelling of 68368474845984 in words is "sixty-eight trillion, three hundred sixty-eight billion, four hundred seventy-four million, eight hundred forty-five thousand, nine hundred eighty-four".

Divisors: 1 2 3 4 6 8 12 16 23 24 32 46 48 69 92 96 138 184 276 368 552 577 736 1104 1154 1731 2208 2308 3462 4616 6924 9232 13271 13848 18464 26542 27696 39813 53084 55392 79626 106168 159252 212336 318504 424672 637008 1274016 53663749 107327498 160991247 214654996 321982494 429309992 643964988 858619984 1234266227 1287929976 1717239968 2468532454 2575859952 3702798681 4937064908 5151719904 7405597362 9874129816 14811194724 19748259632 29622389448 30963983173 39496519264 59244778896 61927966346 92891949519 118489557792 123855932692 185783899038 247711865384 371567798076 495423730768 712171612979 743135596152 990847461536 1424343225958 1486271192304 2136514838937 2848686451916 2972542384608 4273029677874 5697372903832 8546059355748 11394745807664 17092118711496 22789491615328 34184237422992 68368474845984