81426931200

Names of 81426931200

• Cardinal: 81426931200 can be written as Eighty-one billion, four hundred twenty-six million, nine hundred thirty-one thousand, two hundred.

Scientific notation

• Scientific notation: 8.14269312 × 10¹⁰

Factors of 81426931200

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 192

Divisors of 81426931200

• Number of divisors d(n): 540
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 31 32 36 40 45 48 50 60 62 64 72 75 80 90 93 96 100 120 124 128 144 150 151 155 160 180 186 192 200 225 240 248 256 279 288 300 302 310 320 360 372 384 400 450 453 465 480 496 512 558 576 600 604 620 640 720 744 755 768 775 800 900 906 930 960 992 1116 1152 1200 1208 1240 1280 1359 1395 1440 1488 1510 1536 1550 1600 1800 1812 1860 1920 1984 2232 2265 2304 2325 2400 2416 2480 2560 2718 2790 2880 2976 3020 3100 3200 3600 3624 3720 3775 3840 3968 4464 4530 4608 4650 4681 4800 4832 4960 5436 5580 5760 5952 6040 6200 6400 6795 6975 7200 7248 7440 7550 7680 7936 8928 9060 9300 9362 9600 9664 9920 10872 11160 11325 11520 11904 12080 12400 12800 13590 13950 14043 14400 14496 14880 15100 15872 17856 18120 18600 18724 19200 19328 19840 21744 22320 22650 22801 23040 23405 23808 24160 24800 27180 27900 28086 28800 28992 29760 30200 33975 35712 36240 37200 37448 38400 38656 39680 42129 43488 44640 45300 45602 46810 47616 48320 49600 54360 55800 56172 57600 57984 59520 60400 67950 68403 70215 71424 72480 74400 74896 77312 79360 84258 86976 89280 90600 91204 93620 96640 99200 108720 111600 112344 114005 115200 115968 117025 119040 120800 135900 136806 140430 142848 144960 148800 149792 168516 173952 178560 181200 182408 187240 193280 198400 205209 210645 217440 223200 224688 228010 231936 234050 238080 241600 271800 273612 280860 289920 297600 299584 337032 342015 347904 351075 357120 362400 364816 374480 386560 396800 410418 421290 434880 446400 449376 456020 468100 483200 543600 547224 561720 570025 579840 595200 599168 674064 684030 695808 702150 706831 714240 724800 729632 748960 820836 842580 869760 892800 898752 912040 936200 966400 1026045 1053225 1087200 1094448 1123440 1140050 1159680 1190400 1198336 1348128 1368060 1404300 1413662 1449600 1459264 1497920 1641672 1685160 1710075 1739520 1785600 1797504 1824080 1872400 1932800 2052090 2106450 2120493 2174400 2188896 2246880 2280100 2396672 2696256 2736120 2808600 2827324 2899200 2918528 2995840 3283344 3370320 3420150 3479040 3534155 3571200 3595008 3648160 3744800 4104180 4212900 4240986 4348800 4377792 4493760 4560200 5130225 5392512 5472240 5617200 5654648 5798400 5837056 5991680 6361479 6566688 6740640 6840300 7068310 7190016 7296320 7489600 8208360 8425800 8481972 8697600 8755584 8987520 9120400 10260450 10602465 10785024 10944480 11234400 11309296 11674112 11983360 12722958 13133376 13481280 13680600 14136620 14592640 14979200 16416720 16851600 16963944 17395200 17511168 17670775 17975040 18240800 20520900 21204930 21570048 21888960 22468800 22618592 25445916 26266752 26962560 27361200 28273240 29185280 29958400 31807395 32833440 33703200 33927888 35022336 35341550 35950080 36481600 41041800 42409860 43777920 44937600 45237184 50891832 52533504 53012325 53925120 54722400 56546480 58370560 59916800 63614790 65666880 67406400 67855776 70683100 72963200 82083600 84819720 87555840 89875200 90474368 101783664 105067008 106024650 107850240 109444800 113092960 127229580 131333760 134812800 135711552 141366200 145926400 159036975 164167200 169639440 175111680 179750400 180948736 203567328 212049300 218889600 226185920 254459160 262667520 269625600 271423104 282732400 291852800 318073950 328334400 339278880 361897472 407134656 424098600 437779200 452371840 508918320 525335040 539251200 542846208 565464800 636147900 656668800 678557760 814269312 848197200 875558400 904743680 1017836640 1085692416 1130929600 1272295800 1313337600 1357115520 1628538624 1696394400 1809487360 2035673280 2261859200 2544591600 2626675200 2714231040 3257077248 3392788800 4071346560 4523718400 5089183200 5428462080 6785577600 8142693120 9047436800 10178366400 13571155200 16285386240 20356732800 27142310400 40713465600 81426931200
• Sum of all divisors σ(n): 302809931424
• Sum of proper divisors (its aliquot sum) s(n): 221383000224
• 81426931200 is an abundant number, because the sum of its proper divisors (221383000224) is greater than itself. Its abundance is 139956069024

Bases of 81426931200

• Binary: 1001011110101011011000101111000000000₂
• Hexadecimal: 0x12F56C5E00
• Base-36: 11ENHQ80

Squares and roots of 81426931200

• 81426931200 squared (81426931200²) is 6630345124649533440000
• 81426931200 cubed (81426931200³) is 539888656297092983530979328000000
• The square root of 81426931200 is 285354.0453541881
• The cube root of 81426931200 is 4334.3371391821

Scales and comparisons

• 81,426,931,200 seconds is equal to 2,589 years, 6 weeks, 3 days, 8 hours.
• To count from 1 to 81,426,931,200 would take you about five thousand, one hundred seventy-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 81426931200 cubic inches would be around 361.2 feet tall.

Recreational maths with 81426931200

• 81426931200 backwards is 00213962418
• 81426931200 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81426931200's digits is 36
• More coming soon!