81378324000

Names of 81378324000

• Cardinal: 81378324000 can be written as Eighty-one billion, three hundred seventy-eight million, three hundred twenty-four thousand.

Scientific notation

• Scientific notation: 8.1378324 × 10¹⁰

Factors of 81378324000

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 214

Divisors of 81378324000

• Number of divisors d(n): 576
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 23 24 25 27 30 32 36 40 45 46 48 50 54 60 69 72 75 80 90 92 96 100 108 115 120 125 135 138 144 150 160 180 181 184 200 207 216 225 230 240 250 270 276 288 300 345 360 362 368 375 400 414 432 450 460 480 500 540 543 552 575 600 621 675 690 720 724 736 750 800 828 864 900 905 920 1000 1035 1080 1086 1104 1125 1150 1200 1242 1350 1380 1440 1448 1500 1629 1656 1725 1800 1810 1840 2000 2070 2160 2172 2208 2250 2300 2400 2484 2700 2715 2760 2875 2896 3000 3105 3258 3312 3375 3450 3600 3620 3680 4000 4140 4163 4320 4344 4500 4525 4600 4887 4968 5175 5400 5430 5520 5750 5792 6000 6210 6516 6624 6750 6900 7200 7240 8145 8280 8326 8625 8688 9000 9050 9200 9774 9936 10350 10800 10860 11040 11500 12000 12420 12489 13032 13500 13575 13800 14480 15525 16290 16560 16652 17250 17376 18000 18100 18400 19548 19872 20700 20815 21600 21720 22625 23000 24435 24840 24978 25875 26064 27000 27150 27600 28960 31050 32580 32761 33120 33304 34500 36000 36200 37467 39096 40725 41400 41630 43440 45250 46000 48870 49680 49956 51750 52128 54000 54300 55200 62100 62445 65160 65522 66608 67875 69000 72400 74934 77625 78192 81450 82800 83260 86880 90500 92000 97740 98283 99360 99912 103500 104075 108000 108600 112401 122175 124200 124890 130320 131044 133216 135750 138000 144800 149868 155250 156384 162900 163805 165600 166520 181000 187335 195480 196566 199824 203625 207000 208150 217200 224802 244350 248400 249780 260640 262088 271500 276000 294849 299736 310500 312225 325800 327610 333040 362000 374670 390960 393132 399648 407250 414000 416300 434400 449604 488700 491415 496800 499560 520375 524176 543000 562005 589698 599472 610875 621000 624450 651600 655220 666080 724000 749340 753503 781920 786264 814500 819025 828000 832600 884547 899208 936675 977400 982830 999120 1040750 1048352 1086000 1124010 1179396 1198944 1221750 1242000 1248900 1303200 1310440 1474245 1498680 1507006 1561125 1572528 1629000 1638050 1665200 1769094 1798416 1873350 1954800 1965660 1998240 2081500 2172000 2248020 2260509 2358792 2443500 2457075 2484000 2497800 2620880 2810025 2948490 2997360 3014012 3122250 3145056 3258000 3276100 3330400 3538188 3596832 3746700 3767515 3909600 3931320 4095125 4163000 4422735 4496040 4521018 4683375 4717584 4887000 4914150 4995600 5241760 5620050 5896980 5994720 6028024 6244500 6516000 6552200 6781527 7076376 7371225 7493400 7535030 7862640 8190250 8326000 8845470 8992080 9042036 9366750 9435168 9774000 9828300 9991200 11240100 11302545 11793960 12056048 12285375 12489000 13104400 13563054 14050125 14152752 14742450 14986800 15070060 15725280 16380500 16652000 17690940 17984160 18084072 18733500 18837575 19548000 19656600 20344581 22113675 22480200 22605090 23587920 24112096 24570750 24978000 26208800 27126108 28100250 28305504 29484900 29973600 30140120 32761000 33907635 35381880 36168144 36856125 37467000 37675150 39313200 40689162 44227350 44960400 45210180 47175840 49141500 49956000 54252216 56200500 56512725 58969800 60280240 65522000 67815270 70763760 72336288 73712250 74934000 75350300 78626400 81378324 88454700 89920800 90420360 94187875 98283000 101722905 108504432 110568375 112401000 113025450 117939600 120560480 131044000 135630540 141527520 147424500 149868000 150700600 162756648 169538175 176909400 180840720 188375750 196566000 203445810 217008864 221136750 224802000 226050900 235879200 271261080 282563625 294849000 301401200 325513296 339076350 353818800 361681440 376751500 393132000 406891620 442273500 449604000 452101800 508614525 542522160 565127250 589698000 602802400 651026592 678152700 707637600 753503000 813783240 847690875 884547000 904203600 1017229050 1085044320 1130254500 1179396000 1356305400 1507006000 1627566480 1695381750 1769094000 1808407200 2034458100 2260509000 2543072625 2712610800 3014012000 3255132960 3390763500 3538188000 4068916200 4521018000 5086145250 5425221600 6781527000 8137832400 9042036000 10172290500 13563054000 16275664800 20344581000 27126108000 40689162000 81378324000
• Sum of all divisors σ(n): 310813251840
• Sum of proper divisors (its aliquot sum) s(n): 229434927840
• 81378324000 is an abundant number, because the sum of its proper divisors (229434927840) is greater than itself. Its abundance is 148056603840

Bases of 81378324000

• Binary: 1001011110010100001101010111000100000₂
• Hexadecimal: 0x12F286AE20
• Base-36: 11DUJWO0

Squares and roots of 81378324000

• 81378324000 squared (81378324000²) is 6622431617048976000000
• 81378324000 cubed (81378324000³) is 538922385800055492796224000000000
• The square root of 81378324000 is 285268.8626541635
• The cube root of 81378324000 is 4333.4745174249

Scales and comparisons

• 81,378,324,000 seconds is equal to 2,587 years, 30 weeks, 18 hours.
• To count from 1 to 81,378,324,000 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 81378324000 cubic inches would be around 361.1 feet tall.

Recreational maths with 81378324000

• 81378324000 backwards is 00042387318
• 81378324000 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81378324000's digits is 36
• More coming soon!