81720725126950

Names of 81720725126950

• Cardinal: 81720725126950 can be written as Eighty-one trillion, seven hundred twenty billion, seven hundred twenty-five million, one hundred twenty-six thousand, nine hundred fifty.

Scientific notation

• Scientific notation: 8.172072512695 × 10¹³

Factors of 81720725126950

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 117

Divisors of 81720725126950

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 5 7 10 13 14 25 26 31 35 49 50 59 62 65 70 91 98 118 130 155 169 175 182 217 245 295 310 325 338 350 403 413 434 455 490 590 637 650 767 775 806 826 845 910 961 1085 1183 1225 1274 1475 1519 1534 1550 1690 1829 1922 2015 2065 2170 2275 2366 2450 2821 2891 2950 3038 3185 3481 3658 3835 4030 4130 4225 4550 4805 5239 5369 5425 5642 5782 5915 6370 6727 6962 7595 7670 8281 8450 9145 9610 9971 10075 10325 10478 10738 10850 11830 12493 12803 13454 14105 14455 15190 15925 16562 17405 18290 19175 19747 19942 20150 20650 23777 24025 24367 24986 25606 26195 26845 28210 28910 29575 31850 33635 34810 36673 37583 37975 38350 39494 41405 45253 45725 47089 47554 48050 48734 49855 52390 53690 56699 59150 62465 64015 67270 69797 70525 72275 73346 75166 75950 82810 87025 87451 89621 90506 91450 94178 98735 99710 107911 113398 118885 121835 124930 128030 130975 134225 139594 141050 144550 162409 166439 168175 170569 174050 174902 179242 183365 187915 197470 205379 207025 215822 226265 235445 237770 243670 249275 256711 261950 268450 283495 309101 312325 316771 320075 324818 332878 336350 341138 348985 366730 375830 396893 410758 414050 437255 448105 452530 470890 488579 493675 498550 513422 539555 566990 588289 594425 609175 612157 618202 624650 633542 640150 697970 737087 755377 793786 812045 832195 852845 874510 896210 916825 939575 977158 987350 1026895 1079110 1131325 1136863 1165073 1176578 1177225 1188850 1218350 1224314 1283555 1402843 1417475 1437653 1474174 1510754 1545505 1583855 1624090 1664390 1705690 1744925 1833650 1879150 1984465 2053790 2163707 2186275 2217397 2240525 2262650 2273726 2330146 2354450 2442895 2567110 2669927 2697775 2778251 2805686 2834950 2875306 2941445 3060785 3091010 3167710 3345241 3489850 3685435 3776885 3968930 4060225 4118023 4160975 4264225 4327414 4372550 4434794 4481050 4885790 5134475 5159609 5287639 5339854 5395550 5556502 5684315 5825365 5882890 6121570 6366749 6417775 6690482 7014215 7188265 7370870 7553770 7727525 7919275 7958041 8120450 8236046 8321950 8528450 9582131 9819901 9922325 10063571 10268950 10319218 10575278 10818535 11086985 11368630 11650730 12214475 12733498 12835550 13349635 13891255 14028430 14376530 14707225 15145949 15303925 15455050 15838550 15916082 16726205 18236959 18427175 18689489 18884425 19164262 19639802 19844650 20127142 20590115 21637070 22173970 23416687 24428950 25798045 26438195 26699270 27782510 28421575 28826161 29126825 29414450 30291898 30607850 31833745 33452410 34709051 35071075 35941325 36117263 36473918 36854350 37378978 37768850 39790205 41180230 43488133 44567243 46833374 47910655 49099505 50317855 51596090 52876390 54092675 55434925 56843150 57652322 58253650 63667490 66748175 67074917 68739307 69418102 69456275 70142150 71882650 72234526 75729745 79580410 82767737 83631025 86976266 89134486 91184795 93447445 95821310 98199010 100635710 102950575 108185350 110869850 117083435 127658713 128990225 130826423 132190975 133496350 134149834 137478614 138912550 144130805 151459490 159168725 163916809 165535474 167262050 173545255 180586315 182369590 186894890 197369219 198951025 205901150 217440665 222836215 234166870 239553275 242963357 245497525 251589275 255317426 257980450 261652846 264381950 288261610 304416931 311970701 318337450 327833618 335374585 343696535 347090510 361172630 378648725 394738438 397902050 413838685 434881330 445672430 455923975 467237225 469524419 479106550 485926714 490995050 503178550 565345729 579374159 585417175 608833862 623941402 638293565 654132115 670749170 687393070 720654025 757297450 819584045 827677370 867726275 893610991 902931575 911847950 934474450 939048838 986846095 1075980581 1087203325 1114181075 1130691458 1158748318 1170834350 1214816785 1276587130 1308264230 1381584533 1441308050 1522084655 1559853505 1639168090 1676872925 1700743499 1718482675 1735452550 1787221982 1805863150 1973692190 2069193425 2130918517 2151961162 2174406650 2228362150 2347622095 2429633570 2565799847 2763169066 2826728645 2896870795 3044169310 3119707010 3191467825 3270660575 3353745850 3401486998 3436965350 3957420103 4055619113 4097920225 4138386850 4261837034 4468054955 4695244190 4934230475 5131599694 5379902905 5653457290 5793741590 6074083925 6382935650 6541321150 6907922665 7531864067 7610423275 7799267525 7914840206 8111238226 8195840450 8503717495 8936109910 9671091731 9868460950 10654592585 10759805810 11738110475 12148167850 12828999235 13815845330 14133643225 14484353975 15063728134 15220846550 15598535050 17007434990 17960598929 19342183462 19787100515 20278095565 21309185170 22340274775 23476220950 25657998470 26899514525 27701940721 28267286450 28968707950 33355398011 34539613325 35921197858 37659320335 39574201030 40556191130 42518587475 44680549550 48355458655 52723048469 53272962925 53799029050 55403881442 64144996175 66710796022 69079226650 75318640670 85037174950 89802994645 96710917310 98935502575 101390477825 105446096938 106545925850 125724192503 128289992350 138509703605 166776990055 179605989290 188296601675 197871005150 202780955650 233487786077 241777293275 251448385006 263615242345 277019407210 333553980110 376593203350 449014973225 466975572154 483554586550 527230484690 628620962515 692548518025 833884950275 898029946450 1167438930385 1257241925030 1318076211725 1385097036050 1634414502539 1667769900550 2334877860770 2636152423450 3143104812575 3268829005078 5837194651925 6286209625150 8172072512695 11674389303850 16344145025390 40860362563475 81720725126950
• Sum of all divisors σ(n): 201251052177480
• Sum of proper divisors (its aliquot sum) s(n): 119530327050530
• 81720725126950 is an abundant number, because the sum of its proper divisors (119530327050530) is greater than itself. Its abundance is 37809601923580

Bases of 81720725126950

• Binary: 10010100101001100010110110010101011111100100110₂
• Hexadecimal: 0x4A5316CABF26
• Base-36: SYTZDRV3A

Squares and roots of 81720725126950

• 81720725126950 squared (81720725126950²) is 6678276915274517093616302500
• 81720725126950 cubed (81720725126950³) is 545753632114804365309317057153902102375000
• The square root of 81720725126950 is 9039951.6108743635
• The cube root of 81720725126950 is 43395.4374370295

Scales and comparisons

• 81,720,725,126,950 seconds is equal to 2,598,466 years, 14 weeks, 4 days, 9 minutes, 10 seconds.
• To count from 1 to 81,720,725,126,950 would take you about six million, four hundred ninety-six thousand, one hundred sixty-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 81720725126950 cubic inches would be around 3616.3 feet tall.

Recreational maths with 81720725126950

• 81720725126950 backwards is 05962152702718
• The number of decimal digits it has is: 14
• The sum of 81720725126950's digits is 55
• More coming soon!