81742132500

Names of 81742132500

• Cardinal: 81742132500 can be written as Eighty-one billion, seven hundred forty-two million, one hundred thirty-two thousand, five hundred.

Scientific notation

• Scientific notation: 8.17421325 × 10¹⁰

Factors of 81742132500

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 263

Divisors of 81742132500

• Number of divisors d(n): 480
• Complete list of divisors:
  1 2 3 4 5 6 7 10 12 14 15 19 20 21 25 28 30 35 38 42 50 57 60 70 75 76 84 95 100 105 114 125 133 140 150 175 190 210 227 228 250 266 285 300 350 361 375 380 399 420 454 475 500 525 532 570 625 665 681 700 722 750 798 875 908 950 1050 1083 1135 1140 1250 1330 1362 1425 1444 1500 1589 1596 1750 1805 1875 1900 1995 2100 2166 2270 2375 2500 2527 2625 2660 2724 2850 3178 3325 3405 3500 3610 3750 3990 4313 4332 4375 4540 4750 4767 5054 5250 5415 5675 5700 6356 6650 6810 6859 7125 7220 7500 7581 7945 7980 8626 8750 9025 9500 9534 9975 10108 10500 10830 11350 11875 12635 12939 13125 13300 13620 13718 14250 15162 15890 16625 17025 17252 17500 18050 19068 19950 20577 21565 21660 22700 23750 23835 25270 25878 26250 27075 27436 28375 28500 30191 30324 31780 33250 34050 34295 35625 36100 37905 39725 39900 41154 43130 45125 47500 47670 48013 49875 50540 51756 52500 54150 56750 60382 63175 64695 66500 68100 68590 71250 75810 79450 81947 82308 83125 85125 86260 90250 90573 95340 96026 99750 102885 107825 108300 113500 119175 120764 126350 129390 135375 137180 141875 142500 144039 150955 151620 158900 163894 166250 170250 171475 180500 181146 189525 192052 198625 199500 205770 215650 225625 238350 240065 245841 249375 252700 258780 270750 283750 288078 301910 315875 323475 327788 332500 340500 342950 362292 379050 397250 409735 411540 425625 431300 451250 452865 476700 480130 491682 498750 514425 539125 541500 567500 573629 576156 595875 603820 631750 646950 676875 685900 720195 754775 758100 794500 819470 851250 857375 902500 905730 947625 960260 983364 993125 997500 1028850 1078250 1147258 1191750 1200325 1229205 1263500 1293900 1353750 1440390 1509550 1556993 1579375 1617375 1638940 1702500 1714750 1720887 1811460 1895250 1986250 2048675 2057700 2156500 2264325 2294516 2383500 2400650 2458410 2572125 2695625 2707500 2868145 2880780 2979375 3019100 3113986 3158750 3234750 3429500 3441774 3600975 3773875 3790500 3972500 4097350 4286875 4528650 4670979 4738125 4801300 4916820 5144250 5391250 5736290 5958750 6001625 6146025 6227972 6317500 6469500 6883548 7201950 7547750 7784965 8086875 8194700 8573750 8604435 9057300 9341958 9476250 10243375 10288500 10782500 10898951 11321625 11472580 11917500 12003250 12292050 12860625 14340725 14403900 15095500 15569930 16173750 17147500 17208870 18004875 18683916 18869375 18952500 20486750 21797902 22643250 23354895 24006500 24584100 25721250 28681450 30008125 30730125 31139860 32347500 32696853 34417740 36009750 37738750 38924825 40973500 43022175 43595804 45286500 46709790 51216875 51442500 54494755 56608125 57362900 60016250 61460250 65393706 71703625 72019500 75477500 77849650 86044350 90024375 93419580 102433750 108989510 113216250 116774475 120032500 122920500 130787412 143407250 153650625 155699300 163484265 172088700 180048750 194624125 204867500 215110875 217979020 226432500 233548950 272473775 286814500 307301250 326968530 358518125 360097500 389248250 430221750 467097900 544947550 583872375 614602500 653937060 717036250 778496500 817421325 860443500 973120625 1075554375 1089895100 1167744750 1362368875 1434072500 1634842650 1946241250 2151108750 2335489500 2724737750 2919361875 3269685300 3892482500 4087106625 4302217500 5449475500 5838723750 6811844375 8174213250 11677447500 13623688750 16348426500 20435533125 27247377500 40871066250 81742132500
• Sum of all divisors σ(n): 288783559680
• Sum of proper divisors (its aliquot sum) s(n): 207041427180
• 81742132500 is an abundant number, because the sum of its proper divisors (207041427180) is greater than itself. Its abundance is 125299294680

Bases of 81742132500

• Binary: 1001100001000001101011111010100010100₂
• Hexadecimal: 0x130835F514
• Base-36: 11JV5L3O

Squares and roots of 81742132500

• 81742132500 squared (81742132500²) is 6681776225647556250000
• 81742132500 cubed (81742132500³) is 546182637572232441288703125000000
• The square root of 81742132500 is 285905.8105390655
• The cube root of 81742132500 is 4339.9226362503

Scales and comparisons

• 81,742,132,500 seconds is equal to 2,599 years, 7 weeks, 4 days, 11 hours, 55 minutes.
• To count from 1 to 81,742,132,500 would take you about five thousand, one hundred ninety-eight 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 81742132500 cubic inches would be around 361.7 feet tall.

Recreational maths with 81742132500

• 81742132500 backwards is 00523124718
• The number of decimal digits it has is: 11
• The sum of 81742132500's digits is 33
• More coming soon!