81376764210

Names of 81376764210

• Cardinal: 81376764210 can be written as Eighty-one billion, three hundred seventy-six million, seven hundred sixty-four thousand, two hundred ten.

Scientific notation

• Scientific notation: 8.137676421 × 10¹⁰

Factors of 81376764210

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 126

Divisors of 81376764210

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 19 21 27 30 31 35 38 42 45 49 54 57 59 62 63 70 81 90 93 95 98 105 114 118 126 133 135 147 155 162 171 177 186 189 190 210 217 245 266 270 279 285 294 295 310 315 342 354 378 399 405 413 434 441 465 490 513 531 558 567 570 589 590 630 651 665 735 798 810 826 837 855 882 885 930 931 945 1026 1062 1085 1121 1134 1178 1197 1239 1302 1323 1330 1395 1470 1519 1539 1593 1674 1710 1767 1770 1829 1862 1890 1953 1995 2065 2170 2205 2242 2394 2478 2511 2565 2646 2655 2790 2793 2835 2891 2945 3038 3078 3186 3255 3363 3481 3534 3591 3658 3717 3906 3969 3990 4123 4130 4185 4410 4557 4655 4779 5022 5130 5301 5310 5487 5586 5605 5670 5782 5859 5890 5985 6195 6510 6615 6726 6962 7182 7434 7595 7695 7847 7938 7965 8246 8370 8379 8673 8835 9114 9145 9310 9558 9765 10089 10443 10602 10773 10974 11151 11210 11718 11970 12369 12390 12555 12803 13230 13671 13965 14455 15190 15390 15694 15903 15930 16461 16758 16815 17346 17405 17577 17670 17955 18290 18585 19530 19845 20178 20615 20886 21546 22302 22785 23541 23895 24367 24738 25110 25137 25606 26019 26505 27342 27435 27930 28861 28910 29295 30267 31329 31806 32922 33453 33630 34751 34810 35154 35910 37107 37170 38409 39235 39690 41013 41230 41895 43365 45570 47082 47709 47790 48734 49383 50274 50445 52038 52215 53010 53865 54870 54929 55755 57722 58590 60534 61845 62658 64015 66139 66906 68355 69502 70623 73101 74214 75411 76818 78057 78470 79515 82026 82305 83790 86583 86730 87885 89621 90801 93987 95418 98766 100890 104253 104430 107730 107911 109858 111321 111510 115227 117705 121835 123039 123690 125685 128030 130095 132278 136710 141246 144305 146202 148149 150822 151335 156114 156645 159030 164610 164787 167265 170569 173166 173755 175770 179242 181602 185535 187974 192045 198417 205065 208506 211869 215822 219303 222642 230454 234171 235410 238545 243257 243670 246078 246915 251370 259749 260190 268863 274645 281961 288610 296298 302670 312759 313290 323733 329574 330695 333963 334530 341138 345681 347510 353115 365505 371070 377055 384090 390285 396834 410130 423738 432915 438606 448105 454005 462973 468342 469935 477090 486514 493830 494361 511707 519498 521265 537726 539555 549290 556605 563922 576135 595251 615195 625518 635607 647466 657909 661390 667926 691362 706230 729771 731010 740745 754110 755377 779247 780570 806589 823935 852845 865830 896210 908010 925946 938277 939870 971199 988722 992085 1023414 1037043 1042530 1059345 1079110 1096515 1113210 1152270 1170855 1190502 1216285 1230390 1271214 1298745 1315818 1344315 1388919 1409805 1459542 1481490 1483083 1510754 1535121 1558494 1563795 1613178 1618665 1647870 1669815 1702799 1705690 1728405 1785753 1876554 1942398 1973727 1984170 2050309 2074086 2118690 2189313 2193030 2266131 2314865 2337741 2341710 2419767 2432570 2471805 2558535 2597490 2688630 2777838 2814831 2819610 2913597 2966166 2976255 3070242 3127590 3178035 3237330 3240811 3289545 3339630 3405598 3456810 3571506 3648855 3776885 3896235 3947454 4032945 4100618 4166757 4378626 4449249 4532262 4605363 4629730 4675482 4691385 4839534 4855995 4943610 5108397 5117070 5185215 5287639 5357259 5629662 5827194 5952510 6150927 6356070 6481622 6567939 6579090 6798393 6944595 7259301 7297710 7415415 7553770 7675605 7792470 8065890 8333514 8513995 8740791 8898498 8928765 9210726 9382770 9711990 9722433 9868635 10216794 10251545 10370430 10575278 10714518 10946565 11330655 11688705 12098835 12301854 12500271 13135878 13596786 13816089 13889190 14074155 14352163 14518602 14567985 14830830 15325191 15351210 15862917 16204055 17027990 17481582 17857530 18452781 19444866 19703817 19737270 20395179 20503090 20833785 21893130 22246245 22661310 23026815 23377410 24197670 25000542 25541985 26438195 26786295 27632178 28148310 28704326 29135970 29167299 30650382 30754635 31725834 32408110 32839695 33991965 36296505 36905562 37500813 39407634 40790358 41667570 43056489 43703955 44492490 45975573 46053630 47588751 48612165 51083970 52876390 53572590 55358343 58334598 61185537 61509270 62501355 65679390 67983930 69080445 71760815 72593010 75001626 76625955 79314585 86112978 87407910 87501897 91951146 92263905 95177502 97224330 98519085 100465141 101975895 110716686 122371074 125002710 129169467 137926719 138160890 142766253 143521630 145836495 153251910 158629170 166075029 175003794 184527810 187504065 197038170 200930282 203951790 215282445 229877865 237943755 258338934 262505691 275853438 276791715 285532506 291672990 301395423 305927685 332150058 375008130 387508401 428298759 430564890 437509485 459755730 475887510 502325705 525011382 553583430 602790846 611855370 645847335 689633595 713831265 775016802 830375145 856597518 875018970 904186269 1004651410 1162525203 1291694670 1312528455 1379267190 1427662530 1506977115 1660750290 1808372538 1937542005 2141493795 2325050406 2625056910 2712558807 3013954230 3875084010 4282987590 4520931345 5425117614 5812626015 8137676421 9041862690 11625252030 13562794035 16275352842 27125588070 40688382105 81376764210
• Sum of all divisors σ(n): 281344631040
• Sum of proper divisors (its aliquot sum) s(n): 199967866830
• 81376764210 is an abundant number, because the sum of its proper divisors (199967866830) is greater than itself. Its abundance is 118591102620

Bases of 81376764210

• Binary: 1001011110010011011101110000100110010₂
• Hexadecimal: 0x12F26EE132
• Base-36: 11DTMH4I

Squares and roots of 81376764210

• 81376764210 squared (81376764210²) is 6622177753289936924100
• 81376764210 cubed (81376764210³) is 538891397586182748838258366461000
• The square root of 81376764210 is 285266.1287464743
• The cube root of 81376764210 is 4333.4468304723

Scales and comparisons

• 81,376,764,210 seconds is equal to 2,587 years, 27 weeks, 3 days, 16 hours, 43 minutes, 30 seconds.
• To count from 1 to 81,376,764,210 would take you about five thousand, one hundred seventy-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 81376764210 cubic inches would be around 361.1 feet tall.

Recreational maths with 81376764210

• 81376764210 backwards is 01246767318
• 81376764210 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81376764210's digits is 45
• More coming soon!