81010272420
81,010,272,420 is an even composite number composed of seven prime numbers multiplied together.
81010272420 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 81010272420:
22 × 34 × 5 × 7 × 11 × 89 × 7297
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 7 × 11 × 89 × 7297)See below for interesting mathematical facts about the number 81010272420 from the Numbermatics database.
Names of 81010272420
- Cardinal: 81010272420 can be written as Eighty-one billion, ten million, two hundred seventy-two thousand, four hundred twenty.
Scientific notation
- Scientific notation: 8.101027242 × 1010
Factors of 81010272420
Divisors of 81010272420
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 11 12 14 15 18 20 21 22 27 28 30 33 35 36 42 44 45 54 55 60 63 66 70 77 81 84 89 90 99 105 108 110 126 132 135 140 154 162 165 178 180 189 198 210 220 231 252 267 270 297 308 315 324 330 356 378 385 396 405 420 445 462 495 534 540 567 594 623 630 660 693 756 770 801 810 890 891 924 945 979 990 1068 1134 1155 1188 1246 1260 1335 1386 1485 1540 1602 1620 1780 1782 1869 1890 1958 1980 2079 2268 2310 2403 2492 2670 2772 2835 2937 2970 3115 3204 3465 3564 3738 3780 3916 4005 4158 4455 4620 4806 4895 5340 5607 5670 5874 5940 6230 6237 6853 6930 7209 7297 7476 8010 8316 8811 8910 9345 9612 9790 10395 11214 11340 11748 12015 12460 12474 13706 13860 14418 14594 14685 16020 16821 17622 17820 18690 19580 20559 20790 21891 22428 24030 24948 26433 27412 28035 28836 29188 29370 31185 33642 34265 35244 36045 36485 37380 41118 41580 43782 44055 48060 50463 51079 52866 56070 58740 61677 62370 65673 67284 68530 72090 72970 79299 80267 82236 84105 87564 88110 100926 102158 102795 105732 109455 112140 123354 124740 131346 132165 137060 144180 145940 153237 158598 160534 168210 176220 185031 197019 201852 204316 205590 218910 240801 246708 252315 255395 262692 264330 306474 308385 317196 321068 328365 336420 370062 394038 396495 401335 411180 437820 459711 481602 504630 510790 528660 555093 561869 591057 612948 616770 649433 656730 722403 740124 766185 788076 792990 802670 919422 925155 963204 985095 1009260 1021580 1110186 1123738 1182114 1204005 1233540 1298866 1313460 1379133 1444806 1532370 1585980 1605340 1685607 1838844 1850310 1948299 1970190 2167209 2220372 2247476 2298555 2364228 2408010 2597732 2758266 2775465 2809345 2889612 2955285 3064740 3247165 3371214 3612015 3700620 3896598 3940380 4137399 4334418 4546031 4597110 4816020 5056821 5516532 5550930 5618690 5844897 5910570 6494330 6501627 6742428 6895665 7143763 7224030 7793196 8274798 8428035 8668836 9092062 9194220 9741495 10113642 10836045 11101860 11237380 11689794 11821140 12988660 13003254 13638093 13791330 14287526 14448060 15170463 16549596 16856070 17534691 18184124 19482990 20227284 20686995 21431289 21672090 22730155 23379588 25284105 26006508 27276186 27582660 28575052 29224485 30340926 32508135 33712140 35069382 35718815 38965980 40914279 41373990 42862578 43344180 45460310 45511389 50006341 50568210 52604073 54552372 58448970 60681852 64293867 65016270 68190465 70138764 71437630 75852315 81828558 82747980 85725156 87673455 90920620 91022778 100012682 101136420 105208146 107156445 116897940 122742837 128587734 130032540 136380930 142875260 150019023 151704630 163657116 175346910 182045556 192881601 200025364 204571395 210416292 214312890 227556945 245485674 250031705 257175468 263020365 272761860 300038046 303409260 321469335 350693820 368228511 385763202 409142790 428625780 450057069 455113890 490971348 500063410 526040730 578644803 600076092 613714185 642938670 736457022 750095115 771526404 818285580 900114138 910227780 964408005 1000126820 1052081460 1157289606 1227428370 1285877340 1350171207 1472914044 1500190230 1800228276 1841142555 1928816010 2250285345 2314579212 2454856740 2700342414 2893224015 3000380460 3682285110 3857632020 4050513621 4500570690 5400684828 5786448030 6750856035 7364570220 8101027242 9001141380 11572896060 13501712070 16202054484 20252568105 27003424140 40505136210 81010272420
- Sum of all divisors σ(n): 320444087040
- Sum of proper divisors (its aliquot sum) s(n): 239433814620
- 81010272420 is an abundant number, because the sum of its proper divisors (239433814620) is greater than itself. Its abundance is 158423542200
Bases of 81010272420
- Binary: 10010110111001001011010101000101001002
- Hexadecimal: 0x12DC96A8A4
- Base-36: 117RFA90
Squares and roots of 81010272420
- 81010272420 squared (810102724202) is 6562664237562612656400
- 81010272420 cubed (810102724203) is 531643217685938848101903856488000
-
The
square root of 81010272420 is 284623.0356453953 -
The
cube root of 81010272420 is 4326.9316092813
Scales and comparisons
How big is 81010272420?- 81,010,272,420 seconds is equal to 2,575 years, 45 weeks, 3 days, 21 hours, 27 minutes.
-
To count from 1 to 81,010,272,420 would take you about five thousand, one hundred fifty-one 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 81010272420 cubic inches would be around 360.6 feet tall.
Recreational maths with 81010272420
- 81010272420 backwards is 02427201018
- 81010272420 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81010272420's digits is 27
- More coming soon!
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