81442021050

Names of 81442021050

• Cardinal: 81442021050 can be written as Eighty-one billion, four hundred forty-two million, twenty-one thousand and fifty.

Scientific notation

• Scientific notation: 8.144202105 × 10¹⁰

Factors of 81442021050

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 136

Divisors of 81442021050

• Number of divisors d(n): 432
• Complete list of divisors:
  1 2 3 5 6 9 10 13 15 18 25 26 27 30 39 45 50 54 65 75 78 81 90 113 117 130 135 150 162 169 195 225 226 234 243 270 325 338 339 351 390 405 450 486 507 565 585 650 675 678 702 729 810 845 975 1014 1017 1053 1130 1170 1215 1350 1458 1469 1521 1690 1695 1755 1950 2025 2034 2106 2187 2197 2430 2535 2825 2925 2938 3042 3051 3159 3390 3510 3645 4050 4225 4374 4394 4407 4563 5070 5085 5265 5650 5850 6075 6102 6318 6561 6591 7290 7345 7605 8450 8475 8775 8814 9126 9153 9477 10170 10530 10935 10985 12150 12675 13122 13182 13221 13689 14690 15210 15255 15795 16950 17550 18225 18306 18954 19097 19773 21870 21970 22035 22815 25350 25425 26325 26442 27378 27459 28431 30510 31590 32805 32955 36450 36725 38025 38194 39546 39663 41067 44070 45630 45765 47385 50850 52650 54675 54918 54925 56862 57291 59319 65610 65910 66105 68445 73450 76050 76275 78975 79326 82134 82377 85293 91530 94770 95485 98865 109350 109850 110175 114075 114582 118638 118989 123201 132210 136890 137295 142155 152550 157950 164025 164754 164775 170586 171873 177957 190970 197730 198315 205335 220350 228150 228825 236925 237978 246402 247131 248261 274590 284310 286455 296595 328050 329550 330525 342225 343746 355914 356967 369603 396630 410670 411885 426465 457650 473850 477425 494262 494325 496522 515619 533871 572910 593190 594945 616005 661050 684450 686475 710775 713934 739206 741393 744783 823770 852930 859365 889785 954850 988650 991575 1026675 1031238 1067742 1070901 1108809 1189890 1232010 1235655 1241305 1372950 1421550 1432275 1482786 1482975 1489566 1546857 1601613 1718730 1779570 1784835 1848015 1983150 2053350 2059425 2132325 2141802 2217618 2234349 2471310 2482610 2578095 2669355 2864550 2965950 2974725 3080025 3093714 3203226 3212703 3569670 3696030 3706965 3723915 4118850 4264650 4296825 4448925 4468698 4640571 4804839 5156190 5338710 5354505 5544045 5949450 6160050 6178275 6206525 6425406 6703047 7413930 7447830 7734285 8008065 8593650 8897850 8924175 9240075 9281142 9609678 9638109 10709010 11088090 11171745 12356550 12413050 12890475 13346775 13406094 13921713 14414517 15468570 16016130 16063515 17848350 18480150 18534825 18619575 19276218 20109141 22343490 23202855 24024195 25780950 26693550 26772525 27720225 27843426 28829034 32127030 33515235 37069650 37239150 38671425 40040325 40218282 41765139 46405710 48048390 48190545 53545050 55440450 55858725 60327423 67030470 69608565 72072585 77342850 80080650 80317575 83530278 96381090 100545705 111717450 116014275 120120975 120654846 125295417 139217130 144145170 160635150 167576175 180982269 201091410 208825695 232028550 240241950 240952725 250590834 301637115 335152350 348042825 360362925 361964538 417651390 481905450 502728525 542946807 603274230 626477085 696085650 720725850 904911345 1005457050 1044128475 1085893614 1252954170 1508185575 1628840421 1809822690 2088256950 2714734035 3016371150 3132385425 3257680842 4524556725 5429468070 6264770850 8144202105 9049113450 13573670175 16288404210 27147340350 40721010525 81442021050
• Sum of all divisors σ(n): 248315591160
• Sum of proper divisors (its aliquot sum) s(n): 166873570110
• 81442021050 is an abundant number, because the sum of its proper divisors (166873570110) is greater than itself. Its abundance is 85431549060

Bases of 81442021050

• Binary: 1001011110110010100101001111010111010₂
• Hexadecimal: 0x12F6529EBA
• Base-36: 11EWH5MI

Squares and roots of 81442021050

• 81442021050 squared (81442021050²) is 6632802792708643102500
• 81442021050 cubed (81442021050³) is 540188864664276098070742307625000
• The square root of 81442021050 is 285380.4847041929
• The cube root of 81442021050 is 4334.6048657459

Scales and comparisons

• 81,442,021,050 seconds is equal to 2,589 years, 31 weeks, 2 days, 23 hours, 37 minutes, 30 seconds.
• To count from 1 to 81,442,021,050 would take you about five thousand, one hundred seventy-nine 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 81442021050 cubic inches would be around 361.2 feet tall.

Recreational maths with 81442021050

• 81442021050 backwards is 05012024418
• 81442021050 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81442021050's digits is 27
• More coming soon!