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68047140704748 = 22313112943244401
BaseRepresentation
bin11110111100011011101011…
…01001100101000111101100
322220221020120020022211202020
433132031311221211013230
532404341021010022443
6400420231435230140
720222146403351652
oct1736156551450754
9286836506284666
1068047140704748
111a7556a2a40567
12776bba98a8350
132bc7a82a23b8a
1412b36dba88dd2
157d00e035e583
hex3de375a651ec

68047140704748 has 24 divisors (see below), whose sum is σ = 158777876159280. Its totient is φ = 22682206732800.

The previous prime is 68047140704713. The next prime is 68047140704791. The reversal of 68047140704748 is 84740704174086.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 68047140704691 and 68047140704700.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20048653 + ... + 23195748.

It is an arithmetic number, because the mean of its divisors is an integer number (6615744839970).

Almost surely, 268047140704748 is an apocalyptic number.

It is an amenable number.

68047140704748 is an abundant number, since it is smaller than the sum of its proper divisors (90730735454532).

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

68047140704748 is a wasteful number, since it uses less digits than its factorization.

68047140704748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43375537 (or 43375535 counting only the distinct ones).

The product of its (nonzero) digits is 33718272, while the sum is 60.

The spelling of 68047140704748 in words is "sixty-eight trillion, forty-seven billion, one hundred forty million, seven hundred four thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 12 131129 262258 393387 524516 786774 1573548 43244401 86488802 129733203 172977604 259466406 518932812 5670595058729 11341190117458 17011785176187 22682380234916 34023570352374 68047140704748