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68748054553056 = 25310129033244217
BaseRepresentation
bin11111010000110101001110…
…10111101110000111100000
3100000102020202010101112200210
433220122213113232013200
533002332003431144211
6402114230435414120
720323611610642164
oct1750324727560740
9300366663345623
1068748054553056
111a9a598259a99a
127863a00454340
132c48bb55c5858
1412d95d04b2ca4
157e346477b9a6
hex3e86a75ee1e0

68748054553056 has 96 divisors (see below), whose sum is σ = 182257435590048. Its totient is φ = 22688252518400.

The previous prime is 68748054553037. The next prime is 68748054553069. The reversal of 68748054553056 is 65035545084786.

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

It is a congruent number.

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, 281381860 + ... + 281626076.

It is an arithmetic number, because the mean of its divisors is an integer number (1898514954063).

Almost surely, 268748054553056 is an apocalyptic number.

It is an amenable number.

68748054553056 is an abundant number, since it is smaller than the sum of its proper divisors (113509381036992).

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

68748054553056 is a wasteful number, since it uses less digits than its factorization.

68748054553056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273364 (or 273356 counting only the distinct ones).

The product of its (nonzero) digits is 483840000, while the sum is 66.

The spelling of 68748054553056 in words is "sixty-eight trillion, seven hundred forty-eight billion, fifty-four million, five hundred fifty-three thousand, fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 101 202 303 404 606 808 1212 1616 2424 3232 4848 9696 29033 58066 87099 116132 174198 232264 244217 348396 464528 488434 696792 732651 929056 976868 1393584 1465302 1953736 2787168 2930604 2932333 3907472 5861208 5864666 7814944 8796999 11722416 11729332 17593998 23444832 23458664 24665917 35187996 46917328 49331834 70375992 73997751 93834656 98663668 140751984 147995502 197327336 281503968 295991004 394654672 591982008 789309344 1183964016 2367928032 7090352161 14180704322 21271056483 28361408644 42542112966 56722817288 85084225932 113445634576 170168451864 226891269152 340336903728 680673807456 716125568261 1432251136522 2148376704783 2864502273044 4296753409566 5729004546088 8593506819132 11458009092176 17187013638264 22916018184352 34374027276528 68748054553056