81409366080

Names of 81409366080

• Cardinal: 81409366080 can be written as Eighty-one billion, four hundred nine million, three hundred sixty-six thousand and eighty.

Scientific notation

• Scientific notation: 8.140936608 × 10¹⁰

Factors of 81409366080

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 8254

Divisors of 81409366080

• Number of divisors d(n): 672
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 28 29 30 32 34 35 36 40 42 45 48 51 56 58 60 63 64 68 70 72 80 84 85 87 90 96 102 105 112 116 119 120 126 136 140 144 145 153 160 168 170 174 180 192 203 204 210 224 232 238 240 252 255 261 272 280 288 290 306 315 320 336 340 348 357 360 406 408 420 435 448 464 476 480 493 504 510 522 544 560 576 580 595 609 612 630 672 680 696 714 720 765 812 816 840 870 928 952 960 986 1008 1015 1020 1044 1071 1088 1120 1160 1190 1218 1224 1260 1305 1344 1360 1392 1428 1440 1479 1530 1624 1632 1680 1740 1785 1827 1856 1904 1972 2016 2030 2040 2088 2142 2240 2320 2380 2436 2448 2465 2520 2610 2720 2784 2856 2880 2958 3045 3060 3248 3264 3360 3451 3480 3570 3654 3808 3944 4032 4060 4080 4176 4284 4437 4640 4760 4872 4896 4930 5040 5220 5355 5440 5568 5712 5916 6090 6120 6496 6720 6902 6960 7140 7308 7395 7616 7888 8120 8160 8191 8352 8568 8874 9135 9280 9520 9744 9792 9860 10080 10353 10440 10710 11424 11832 12180 12240 12992 13804 13920 14280 14616 14790 15776 16240 16320 16382 16704 17136 17255 17748 18270 19040 19488 19720 20160 20706 20880 21420 22185 22848 23664 24360 24480 24573 27608 27840 28560 29232 29580 31059 31552 32480 32764 34272 34510 35496 36540 38080 38976 39440 40955 41412 41760 42840 44370 47328 48720 48960 49146 51765 55216 57120 57337 58464 59160 62118 64960 65528 68544 69020 70992 73080 73719 78880 81910 82824 83520 85680 88740 94656 97440 98292 103530 110432 114240 114674 116928 118320 122865 124236 131056 138040 139247 141984 146160 147438 155295 157760 163820 165648 171360 172011 177480 194880 196584 207060 220864 229348 236640 237539 245730 248472 262112 276080 278494 283968 286685 292320 294876 310590 327640 331296 342720 344022 354960 368595 393168 414120 417741 458696 473280 475078 491460 496944 516033 524224 552160 556988 573370 584640 589752 621180 655280 662592 688044 696235 709920 712617 737190 786336 828240 835482 860055 917392 950156 974729 982920 993888 1032066 1104320 1113976 1146740 1179504 1187695 1242360 1253223 1310560 1376088 1392470 1419840 1425234 1474380 1572672 1656480 1662773 1670964 1720110 1834784 1900312 1949458 1965840 1987776 2064132 2088705 2137851 2227952 2293480 2359008 2375390 2484720 2506446 2580165 2621120 2752176 2784940 2850468 2924187 2948760 3312960 3325546 3341928 3440220 3563085 3669568 3800624 3898916 3931680 4038163 4128264 4177410 4275702 4455904 4586960 4718016 4750780 4873645 4969440 4988319 5012892 5160330 5504352 5569880 5700936 5848374 5897520 6266115 6651092 6683856 6880440 7126170 7601248 7797832 7863360 8076326 8256528 8313865 8354820 8551404 8772561 8911808 9173920 9501560 9747290 9938880 9976638 10025784 10320660 10689255 11008704 11139760 11401872 11696748 11795040 12114489 12532230 13302184 13367712 13760880 14252340 14620935 14964957 15202496 15595664 16152652 16513056 16627730 16709640 17102808 17545122 18347840 19003120 19494580 19953276 20051568 20190815 20641320 21378510 22279520 22803744 23393496 23590080 24228978 24941595 25064460 26604368 26735424 27521760 28267141 28504680 29241870 29929914 31191328 32305304 33026112 33255460 33419280 34205616 35090244 36343467 38006240 38989160 39906552 40103136 40381630 41282640 42757020 43862805 44559040 45607488 46786992 48457956 49883190 50128920 53208736 55043520 56534282 57009360 58483740 59859828 60572445 62382656 64610608 66510920 66838560 68411232 70180488 72686934 74824785 76012480 77978320 79813104 80206272 80763260 82565280 84801423 85514040 87725610 93573984 96915912 99766380 100257840 106417472 113068564 114018720 116967480 119719656 121144890 129221216 133021840 133677120 136822464 140360976 141335705 145373868 149649570 155956640 159626208 161526520 165130560 169602846 171028080 175451220 181717335 187147968 193831824 199532760 200515680 226137128 228037440 233934960 239439312 242289780 254404269 258442432 266043680 280721952 282671410 290747736 299299140 311913280 319252416 323053040 339205692 342056160 350902440 363434670 387663648 399065520 401031360 424007115 452274256 467869920 478878624 484579560 508808538 532087360 561443904 565342820 581495472 598598280 646106080 678411384 684112320 701804880 726869340 775327296 798131040 848014230 904548512 935739840 957757248 969159120 1017617076 1130685640 1162990944 1197196560 1272021345 1292212160 1356822768 1403609760 1453738680 1596262080 1696028460 1809097024 1938318240 2035234152 2261371280 2325981888 2394393120 2544042690 2713645536 2807219520 2907477360 3392056920 3876636480 4070468304 4522742560 4788786240 5088085380 5427291072 5814954720 6784113840 8140936608 9045485120 10176170760 11629909440 13568227680 16281873216 20352341520 27136455360 40704683040 81409366080
• Sum of all divisors σ(n): 350567792640
• Sum of proper divisors (its aliquot sum) s(n): 269158426560
• 81409366080 is an abundant number, because the sum of its proper divisors (269158426560) is greater than itself. Its abundance is 187749060480

Bases of 81409366080

• Binary: 1001011110100011000000101100001000000₂
• Hexadecimal: 0x12F4605840
• Base-36: 11ED18W0

Squares and roots of 81409366080

• 81409366080 squared (81409366080²) is 6627484885547454566400
• 81409366080 cubed (81409366080³) is 539539343237199630008225267712000
• The square root of 81409366080 is 285323.2659283151
• The cube root of 81409366080 is 4334.0254543137

Scales and comparisons

• 81,409,366,080 seconds is equal to 2,588 years, 29 weeks, 3 days, 48 minutes.
• To count from 1 to 81,409,366,080 would take you about five thousand, one hundred seventy-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 81409366080 cubic inches would be around 361.2 feet tall.

Recreational maths with 81409366080

• 81409366080 backwards is 08066390418
• 81409366080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81409366080's digits is 45
• More coming soon!