81403489969920
81,403,489,969,920 is an even composite number composed of five prime numbers multiplied together.
81403489969920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred thirty-two divisors.
Prime factorization of 81403489969920:
28 × 33 × 5 × 593 × 19932
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 5 × 593 × 1993 × 1993)See below for interesting mathematical facts about the number 81403489969920 from the Numbermatics database.
Names of 81403489969920
- Cardinal: 81403489969920 can be written as Eighty-one trillion, four hundred three billion, four hundred eighty-nine million, nine hundred sixty-nine thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 8.140348996992 × 1013
Factors of 81403489969920
Divisors of 81403489969920
- Number of divisors d(n): 432
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 64 72 80 90 96 108 120 128 135 144 160 180 192 216 240 256 270 288 320 360 384 432 480 540 576 593 640 720 768 864 960 1080 1152 1186 1280 1440 1728 1779 1920 1993 2160 2304 2372 2880 2965 3456 3558 3840 3986 4320 4744 5337 5760 5930 5979 6912 7116 7972 8640 8895 9488 9965 10674 11520 11860 11958 14232 15944 16011 17280 17790 17937 18976 19930 21348 23720 23916 26685 28464 29895 31888 32022 34560 35580 35874 37952 39860 42696 47440 47832 53370 53811 56928 59790 63776 64044 71160 71748 75904 79720 80055 85392 89685 94880 95664 106740 107622 113856 119580 127552 128088 142320 143496 151808 159440 160110 170784 179370 189760 191328 213480 215244 227712 239160 255104 256176 269055 284640 286992 318880 320220 341568 358740 379520 382656 426960 430488 455424 478320 510208 512352 538110 569280 573984 637760 640440 683136 717480 759040 765312 853920 860976 956640 1024704 1076220 1138560 1147968 1181849 1275520 1280880 1366272 1434960 1530624 1707840 1721952 1913280 2049408 2152440 2277120 2295936 2363698 2551040 2561760 2869920 3415680 3443904 3545547 3826560 3972049 4098816 4304880 4591872 4727396 5123520 5739840 5909245 6831360 6887808 7091094 7653120 7944098 8609760 9454792 10247040 10636641 11479680 11818490 11916147 13775616 14182188 15888196 17219520 17727735 18909584 19860245 20494080 21273282 22959360 23636980 23832294 28364376 31776392 31909923 34439040 35455470 35748441 37819168 39720490 42546564 47273960 47664588 53183205 56728752 59580735 63552784 63819846 68878080 70910940 71496882 75638336 79440980 85093128 94547920 95329176 106366410 107245323 113457504 119161470 127105568 127639692 141821880 142993764 151276672 158881960 159549615 170186256 178742205 189095840 190658352 212732820 214490646 226915008 238322940 254211136 255279384 283643760 285987528 302553344 317763920 319099230 340372512 357484410 378191680 381316704 425465640 428981292 453830016 476645880 508422272 510558768 536226615 567287520 571975056 635527840 638198460 680745024 714968820 756383360 762633408 850931280 857962584 907660032 953291760 1016844544 1021117536 1072453230 1134575040 1143950112 1271055680 1276396920 1361490048 1429937640 1512766720 1525266816 1701862560 1715925168 1906583520 2042235072 2144906460 2269150080 2287900224 2355425057 2542111360 2552793840 2722980096 2859875280 3050533632 3403725120 3431850336 3813167040 4084470144 4289812920 4538300160 4575800448 4710850114 5084222720 5105587680 5719750560 6807450240 6863700672 7066275171 7626334080 8168940288 8579625840 9151600896 9421700228 10211175360 11439501120 11777125285 13614900480 13727401344 14132550342 15252668160 17159251680 18843400456 20422350720 21198825513 22879002240 23554250570 27454802688 28265100684 34318503360 35331375855 37686800912 40844701440 42397651026 45758004480 47108501140 56530201368 63596476539 68637006720 70662751710 75373601824 84795302052 94217002280 105994127565 113060402736 127192953078 137274013440 141325503420 150747203648 169590604104 188434004560 211988255130 226120805472 254385906156 282651006840 301494407296 317982382695 339181208208 376868009120 423976510260 452241610944 508771812312 565302013680 602988814592 635964765390 678362416416 753736018240 847953020520 904483221888 1017543624624 1130604027360 1271929530780 1356724832832 1507472036480 1695906041040 1808966443776 2035087249248 2261208054720 2543859061560 2713449665664 3014944072960 3391812082080 4070174498496 4522416109440 5087718123120 5426899331328 6783624164160 8140348996992 9044832218880 10175436246240 13567248328320 16280697993984 20350872492480 27134496656640 40701744984960 81403489969920
- Sum of all divisors σ(n): 289501720310880
- Sum of proper divisors (its aliquot sum) s(n): 208098230340960
- 81403489969920 is an abundant number, because the sum of its proper divisors (208098230340960) is greater than itself. Its abundance is 126694740371040
Bases of 81403489969920
- Binary: 100101000001001001110100001101001100111000000002
- Hexadecimal: 0x4A093A1A6700
- Base-36: SUS8W5HC0
Squares and roots of 81403489969920
- 81403489969920 squared (814034899699202) is 6626528179282866042504806400
- 81403489969920 cubed (814034899699203) is 539422520177645025429550972175791423488000
-
The
square root of 81403489969920 is 9022388.2630886597 -
The
cube root of 81403489969920 is 43339.2117547099
Scales and comparisons
How big is 81403489969920?- 81,403,489,969,920 seconds is equal to 2,588,379 years, 9 weeks, 3 days, 19 hours, 12 minutes.
-
To count from 1 to 81,403,489,969,920 would take you about six million, four hundred seventy thousand, nine hundred forty-seven 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 81403489969920 cubic inches would be around 3611.6 feet tall.
Recreational maths with 81403489969920
- 81403489969920 backwards is 02996998430418
- 81403489969920 is a
Harshad number . - The number of decimal digits it has is: 14
- The sum of 81403489969920's digits is 72
- More coming soon!
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