81427656960
81,427,656,960 is an even composite number composed of six prime numbers multiplied together.
81427656960 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 81427656960:
28 × 32 × 5 × 13 × 29 × 18749
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 29 × 18749)See below for interesting mathematical facts about the number 81427656960 from the Numbermatics database.
Names of 81427656960
- Cardinal: 81427656960 can be written as Eighty-one billion, four hundred twenty-seven million, six hundred fifty-six thousand, nine hundred sixty.
Scientific notation
- Scientific notation: 8.142765696 × 1010
Factors of 81427656960
Divisors of 81427656960
- Number of divisors d(n): 432
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 29 30 32 36 39 40 45 48 52 58 60 64 65 72 78 80 87 90 96 104 116 117 120 128 130 144 145 156 160 174 180 192 195 208 232 234 240 256 260 261 288 290 312 320 348 360 377 384 390 416 435 464 468 480 520 522 576 580 585 624 640 696 720 754 768 780 832 870 928 936 960 1040 1044 1131 1152 1160 1170 1248 1280 1305 1392 1440 1508 1560 1664 1740 1856 1872 1885 1920 2080 2088 2262 2304 2320 2340 2496 2610 2784 2880 3016 3120 3328 3393 3480 3712 3744 3770 3840 4160 4176 4524 4640 4680 4992 5220 5568 5655 5760 6032 6240 6786 6960 7424 7488 7540 8320 8352 9048 9280 9360 9984 10440 11136 11310 11520 12064 12480 13572 13920 14976 15080 16640 16704 16965 18096 18560 18720 18749 20880 22272 22620 24128 24960 27144 27840 29952 30160 33408 33930 36192 37120 37440 37498 41760 45240 48256 49920 54288 55680 56247 60320 66816 67860 72384 74880 74996 83520 90480 93745 96512 108576 111360 112494 120640 135720 144768 149760 149992 167040 168741 180960 187490 217152 224988 241280 243737 271440 281235 289536 299984 334080 337482 361920 374980 434304 449976 482560 487474 542880 543721 562470 599968 674964 723840 731211 749960 843705 868608 899952 974948 1085760 1087442 1124940 1199936 1218685 1349928 1447680 1462422 1499920 1631163 1687410 1799904 1949896 2171520 2174884 2193633 2249880 2399872 2437370 2699856 2718605 2924844 2999840 3262326 3374820 3599808 3656055 3899792 4343040 4349768 4387266 4499760 4799744 4874740 4893489 5399712 5437210 5849688 5999680 6524652 6749640 7068373 7199616 7312110 7799584 8155815 8699536 8774532 8999520 9749480 9786978 10799424 10874420 10968165 11699376 11999360 13049304 13499280 14136746 14399232 14624220 15599168 16311630 17399072 17549064 17999040 19498960 19573956 21205119 21598848 21748840 21936330 23398752 23998720 24467445 26098608 26998560 28273492 29248440 31198336 32623260 34798144 35098128 35341865 35998080 38997920 39147912 42410238 43197696 43497680 43872660 46797504 48934890 52197216 53997120 56546984 58496880 62396672 63615357 65246520 69596288 70196256 70683730 71996160 77995840 78295824 84820476 86995360 87745320 93595008 97869780 104394432 106025595 107994240 113093968 116993760 127230714 130493040 139192576 140392512 141367460 155991680 156591648 169640952 173990720 175490640 187190016 195739560 208788864 212051190 215988480 226187936 233987520 254461428 260986080 280785024 282734920 311983360 313183296 318076785 339281904 347981440 350981280 391479120 417577728 424102380 452375872 467975040 508922856 521972160 561570048 565469840 626366592 636153570 678563808 695962880 701962560 782958240 848204760 904751744 935950080 1017845712 1043944320 1130939680 1252733184 1272307140 1357127616 1403925120 1565916480 1696409520 1809503488 2035691424 2087888640 2261879360 2544614280 2714255232 2807850240 3131832960 3392819040 4071382848 4523758720 5089228560 5428510464 6263665920 6785638080 8142765696 9047517440 10178457120 13571276160 16285531392 20356914240 27142552320 40713828480 81427656960
- Sum of all divisors σ(n): 313881750000
- Sum of proper divisors (its aliquot sum) s(n): 232454093040
- 81427656960 is an abundant number, because the sum of its proper divisors (232454093040) is greater than itself. Its abundance is 151026436080
Bases of 81427656960
- Binary: 10010111101010111011101110001000000002
- Hexadecimal: 0x12F5777100
- Base-36: 11ENXA80
Squares and roots of 81427656960
- 81427656960 squared (814276569602) is 6630463317995436441600
- 81427656960 cubed (814276569603) is 539903092543595793412087873536000
-
The
square root of 81427656960 is 285355.3170347453 -
The
cube root of 81427656960 is 4334.3500164907
Scales and comparisons
How big is 81427656960?- 81,427,656,960 seconds is equal to 2,589 years, 7 weeks, 4 days, 17 hours, 36 minutes.
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To count from 1 to 81,427,656,960 would take you about five thousand, one hundred seventy-eight years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 81427656960 cubic inches would be around 361.2 feet tall.
Recreational maths with 81427656960
- 81427656960 backwards is 06965672418
- The number of decimal digits it has is: 11
- The sum of 81427656960's digits is 54
- More coming soon!
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