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68450098645936 = 24731571269312821
BaseRepresentation
bin11111001000001010001111…
…10100001000101110110000
322222100202200001210012020101
433210011013310020232300
532432441300223132221
6401325312522322144
720263233153344140
oct1744050764105660
9288322601705211
1068450098645936
111a8a0584216957
127816107659354
132c26a8010ba77
1412c9006a26920
157da82678ed91
hex3e4147d08bb0

68450098645936 has 160 divisors (see below), whose sum is σ = 156801802899456. Its totient is φ = 28326989952000.

The previous prime is 68450098645927. The next prime is 68450098645937. The reversal of 68450098645936 is 63954689005486.

It is a super-3 number, since 3×684500986459363 (a number of 42 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (68450098645937) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5338898406 + ... + 5338911226.

Almost surely, 268450098645936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68450098645936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78400901449728).

68450098645936 is an abundant number, since it is smaller than the sum of its proper divisors (88351704253520).

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

68450098645936 is a wasteful number, since it uses less digits than its factorization.

68450098645936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16131 (or 16125 counting only the distinct ones).

The product of its (nonzero) digits is 1343692800, while the sum is 73.

The spelling of 68450098645936 in words is "sixty-eight trillion, four hundred fifty billion, ninety-eight million, six hundred forty-five thousand, nine hundred thirty-six".

Divisors: 1 2 4 7 8 14 16 28 31 56 62 112 124 217 248 434 496 571 868 1142 1736 2284 2693 3472 3997 4568 5386 7994 9136 10772 12821 15988 17701 18851 21544 25642 31976 35402 37702 43088 51284 63952 70804 75404 83483 89747 102568 123907 141608 150808 166966 179494 205136 247814 283216 301616 333932 358988 397451 495628 584381 667864 717976 794902 991256 1168762 1335728 1435952 1537703 1589804 1982512 2337524 2782157 3075406 3179608 4675048 5564314 6150812 6359216 7320791 9350096 10763921 11128628 12301624 14641582 21527842 22257256 24603248 29283164 34526953 43055684 44514512 47668793 51245537 58566328 69053906 86111368 95337586 102491074 117132656 138107812 172222736 190675172 204982148 226944521 241688671 276215624 333681551 381350344 409964296 453889042 483377342 552431248 667363102 762700688 819928592 907778084 966754684 1070335543 1334726204 1588611647 1815556168 1933509368 2140671086 2669452408 3177223294 3631112336 3867018736 4281342172 5338904816 6354446588 7492348801 8562684344 12708893176 14984697602 17125368688 19714890163 25417786352 29969395204 39429780326 59938790408 78859560652 119877580816 138004231141 157719121304 276008462282 315438242608 552016924564 611161595053 1104033849128 1222323190106 2208067698256 2444646380212 4278131165371 4889292760424 8556262330742 9778585520848 17112524661484 34225049322968 68450098645936