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68139088224912 = 24331373114879367
BaseRepresentation
bin11110111111000110111100…
…01001100010001010010000
322221021000220012210211022000
433133203132021202022100
532412342323041144122
6400530355345514000
720231613061363605
oct1737433611421220
9287230805724260
1068139088224912
111a790696a14351
12778598a942900
132c03647177443
1412b7d414a06ac
157d26c26840ac
hex3df8de262290

68139088224912 has 80 divisors (see below), whose sum is σ = 195726872023680. Its totient is φ = 22696486581888.

The previous prime is 68139088224829. The next prime is 68139088224923. The reversal of 68139088224912 is 21942288093186.

68139088224912 is a `hidden beast` number, since 6 + 8 + 1 + 390 + 8 + 8 + 224 + 9 + 12 = 666.

68139088224912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 68139088224912.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56846548 + ... + 58032819.

It is an arithmetic number, because the mean of its divisors is an integer number (2446585900296).

Almost surely, 268139088224912 is an apocalyptic number.

It is an amenable number.

68139088224912 is an abundant number, since it is smaller than the sum of its proper divisors (127587783798768).

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

68139088224912 is a wasteful number, since it uses less digits than its factorization.

68139088224912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114880757 (or 114880745 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The spelling of 68139088224912 in words is "sixty-eight trillion, one hundred thirty-nine billion, eighty-eight million, two hundred twenty-four thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 1373 2746 4119 5492 8238 10984 12357 16476 21968 24714 32952 37071 49428 65904 74142 98856 148284 197712 296568 593136 114879367 229758734 344638101 459517468 689276202 919034936 1033914303 1378552404 1838069872 2067828606 2757104808 3101742909 4135657212 5514209616 6203485818 8271314424 12406971636 16542628848 24813943272 49627886544 157729370891 315458741782 473188112673 630917483564 946376225346 1261834967128 1419564338019 1892752450692 2523669934256 2839128676038 3785504901384 4258693014057 5678257352076 7571009802768 8517386028114 11356514704152 17034772056228 22713029408304 34069544112456 68139088224912