81550771538742
81,550,771,538,742 is an even composite number composed of five prime numbers multiplied together.
81550771538742 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred sixteen divisors.
Prime factorization of 81550771538742:
2 × 32 × 113 × 412 × 14232
(2 × 3 × 3 × 11 × 11 × 11 × 41 × 41 × 1423 × 1423)See below for interesting mathematical facts about the number 81550771538742 from the Numbermatics database.
Names of 81550771538742
- Cardinal: 81550771538742 can be written as Eighty-one trillion, five hundred fifty billion, seven hundred seventy-one million, five hundred thirty-eight thousand, seven hundred forty-two.
Scientific notation
- Scientific notation: 8.1550771538742 × 1013
Factors of 81550771538742
Divisors of 81550771538742
- Number of divisors d(n): 216
-
Complete list of divisors:
1 2 3 6 9 11 18 22 33 41 66 82 99 121 123 198 242 246 363 369 451 726 738 902 1089 1331 1353 1423 1681 2178 2662 2706 2846 3362 3993 4059 4269 4961 5043 7986 8118 8538 9922 10086 11979 12807 14883 15129 15653 18491 23958 25614 29766 30258 31306 36982 44649 46959 54571 55473 58343 89298 93918 109142 110946 116686 140877 163713 166419 172183 175029 203401 281754 327426 332838 344366 350058 406802 491139 516549 525087 610203 641773 982278 1033098 1050174 1220406 1283546 1549647 1830609 1894013 1925319 2024929 2237411 2392063 3099294 3661218 3788026 3850638 4049858 4474822 4784126 5682039 5775957 6074787 6712233 7059503 7176189 11364078 11551914 12149574 13424466 14119006 14352378 17046117 18224361 20136699 21178509 21528567 22274219 26312693 34092234 36448722 40273398 42357018 43057134 44548438 52625386 63535527 66822657 77654533 78938079 83022089 127071054 133645314 155309066 157876158 166044178 200467971 232963599 236814237 245016409 249066267 289439623 400935942 465927198 473628474 490032818 498132534 578879246 698890797 735049227 747198801 868318869 913242979 1397781594 1470098454 1494397602 1736637738 1826485958 2205147681 2604956607 2695180499 2739728937 3183835853 3403905649 4410295362 5209913214 5390360998 5479457874 6367671706 6807811298 8085541497 8219186811 9551507559 10045672769 10211716947 16171082994 16438373622 19103015118 20091345538 20423433894 24256624491 28654522677 30137018307 30635150841 37442962139 48513248982 57309045354 60274036614 61270301682 74885924278 90411054921 110502400459 112328886417 180822109842 221004800918 224657772834 331507201377 336986659251 411872583529 663014402754 673973318502 823745167058 994521604131 1235617750587 1989043208262 2471235501174 3706853251761 4530598418819 7413706503522 9061196837638 13591795256457 27183590512914 40775385769371 81550771538742
- Sum of all divisors σ(n): 199345329480024
- Sum of proper divisors (its aliquot sum) s(n): 117794557941282
- 81550771538742 is an abundant number, because the sum of its proper divisors (117794557941282) is greater than itself. Its abundance is 36243786402540
Bases of 81550771538742
- Binary: 100101000101011100001001100010011001011001101102
- Hexadecimal: 0x4A2B84C4CB36
- Base-36: SWNWNSN5I
Squares and roots of 81550771538742
- 81550771538742 squared (815507715387422) is 6650528338564092230406942564
- 81550771538742 cubed (815507715387423) is 542355717150169692479491986240813894814488
-
The
square root of 81550771538742 is 9030546.5802874855 -
The
cube root of 81550771538742 is 43365.3335724365
Scales and comparisons
How big is 81550771538742?- 81,550,771,538,742 seconds is equal to 2,593,062 years, 14 weeks, 4 days, 14 hours, 5 minutes, 42 seconds.
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To count from 1 to 81,550,771,538,742 would take you about six million, four hundred eighty-two thousand, six hundred fifty-five 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 81550771538742 cubic inches would be around 3613.8 feet tall.
Recreational maths with 81550771538742
- 81550771538742 backwards is 24783517705518
- The number of decimal digits it has is: 14
- The sum of 81550771538742's digits is 63
- More coming soon!
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