81370289000

Names of 81370289000

• Cardinal: 81370289000 can be written as Eighty-one billion, three hundred seventy million, two hundred eighty-nine thousand.

Scientific notation

• Scientific notation: 8.1370289 × 10¹⁰

Factors of 81370289000

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 75

Divisors of 81370289000

• Number of divisors d(n): 640
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 20 22 25 26 28 35 37 40 44 50 52 55 56 65 70 74 77 88 91 100 104 110 125 130 140 143 148 154 169 175 182 185 200 220 250 259 260 275 280 286 296 308 325 338 350 364 370 385 407 440 455 481 500 518 520 550 572 616 650 676 700 715 728 740 770 814 845 875 910 925 962 1000 1001 1036 1100 1144 1183 1295 1300 1352 1375 1400 1430 1480 1540 1625 1628 1690 1750 1820 1850 1859 1924 1925 2002 2035 2072 2197 2200 2275 2366 2405 2590 2600 2750 2849 2860 3080 3250 3256 3367 3380 3500 3575 3640 3700 3718 3848 3850 4004 4070 4225 4394 4550 4625 4732 4810 5005 5180 5291 5500 5698 5720 5915 6253 6475 6500 6734 6760 7000 7150 7400 7436 7700 8008 8140 8450 8788 9100 9250 9295 9464 9620 9625 10010 10175 10360 10582 10985 11000 11375 11396 11830 12025 12506 12950 13000 13013 13468 14245 14300 14872 15379 15400 16280 16835 16900 17576 17875 18200 18500 18590 19240 19250 20020 20350 21125 21164 21970 22750 22792 23660 24050 24167 25012 25025 25900 26026 26455 26936 28490 28561 28600 29575 30758 31265 32375 33670 33800 35750 37000 37037 37180 38500 40040 40700 42250 42328 43771 43940 45500 46475 47320 48100 48334 50024 50050 50875 51800 52052 52910 54925 56980 57122 59150 60125 61516 62530 64750 65065 67340 68783 71225 71500 74074 74360 76895 77000 81289 81400 84175 84500 87542 87880 91000 92950 96200 96668 100100 101750 104104 105820 109850 113960 114244 118300 120250 120835 123032 125060 125125 129500 130130 132275 134680 137566 142450 142805 143000 147875 148148 153790 156325 162578 168350 169000 169169 175084 185185 185900 193336 199927 200200 203500 211640 218855 219700 228488 232375 236600 240500 241670 250120 250250 259000 260260 264550 274625 275132 284900 285610 295750 296296 307580 312650 314171 325156 325325 336700 338338 343915 350168 356125 370370 371800 384475 399854 406445 407000 420875 437710 439400 464750 481000 481481 483340 500500 520520 529100 549250 550264 569023 569800 571220 591500 604175 615160 625300 628342 650312 650650 661375 673400 676676 687830 712250 714025 740740 768950 781625 799708 812890 841750 845845 875420 894179 925925 929500 962962 966680 999635 1001000 1056757 1058200 1094275 1098500 1138046 1142440 1183000 1208350 1250600 1256684 1301300 1322750 1353352 1375660 1424500 1428050 1481480 1537900 1563250 1570855 1599416 1625780 1626625 1683500 1691690 1719575 1750840 1788358 1851850 1859000 1922375 1925924 1999270 2032225 2113514 2188550 2197000 2199197 2276092 2407405 2416700 2513368 2602600 2645500 2751320 2845115 2849000 2856100 3020875 3075800 3126500 3141710 3251560 3253250 3367000 3383380 3439150 3570125 3576716 3703700 3844750 3851848 3998540 4064450 4227028 4229225 4377100 4398394 4470895 4552184 4629625 4814810 4833400 4998175 5283785 5291000 5471375 5690230 5712200 6041750 6253000 6259253 6283420 6506500 6766760 6878300 7140250 7153432 7397299 7407400 7689500 7854275 7997080 8128900 8454056 8458450 8597875 8754200 8796788 8941790 9259250 9629620 9996350 10161125 10567570 10942750 10995985 11380460 11624327 12037025 12083500 12518506 12566840 13013000 13756600 14225575 14280500 14794598 15379000 15708550 16257800 16916900 17195750 17593576 17883580 18518500 19259240 19992700 20322250 21135140 21146125 21885500 21991970 22354475 22760920 23248654 24074050 24167000 24990875 25037012 26418925 28451150 28561000 29589196 31296265 31417100 33833800 34391500 35767160 36986495 37037000 39271375 39985400 40644500 42270280 42292250 43771000 43983940 44708950 46497308 48148100 49981750 50074024 52837850 54979925 56902300 58121635 59178392 60185125 62592530 62834200 68783000 71127875 73972990 78542750 81289000 81370289 84584500 87967880 89417900 92994616 96296200 99963500 105675700 109959850 111772375 113804600 116243270 120370250 125185060 132094625 142255750 147945980 156481325 157085500 162740578 169169000 178835800 184932475 199927000 211351400 219919700 223544750 232486540 240740500 250370120 264189250 274899625 284511500 290608175 295891960 312962650 314171000 325481156 369864950 406851445 439839400 447089500 464973080 481481000 528378500 549799250 569023000 581216350 625925300 650962312 739729900 782406625 813702890 894179000 924662375 1056757000 1099598500 1162432700 1251850600 1453040875 1479459800 1564813250 1627405780 1849324750 2034257225 2199197000 2324865400 2906081750 3129626500 3254811560 3698649500 4068514450 5812163500 6259253000 7397299000 8137028900 10171286125 11624327000 16274057800 20342572250 40685144500 81370289000
• Sum of all divisors σ(n): 264122277120
• Sum of proper divisors (its aliquot sum) s(n): 182751988120
• 81370289000 is an abundant number, because the sum of its proper divisors (182751988120) is greater than itself. Its abundance is 101381699120

Bases of 81370289000

• Binary: 1001011110010000011000001001101101000₂
• Hexadecimal: 0x12F20C1368
• Base-36: 11DPROTK

Squares and roots of 81370289000

• 81370289000 squared (81370289000²) is 6621123931943521000000
• 81370289000 cubed (81370289000³) is 538762767847060635447569000000000
• The square root of 81370289000 is 285254.7791010695
• The cube root of 81370289000 is 4333.3318888885

Scales and comparisons

• 81,370,289,000 seconds is equal to 2,587 years, 16 weeks, 5 days, 18 hours, 3 minutes, 20 seconds.
• To count from 1 to 81,370,289,000 would take you about five thousand, one hundred seventy-four 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 81370289000 cubic inches would be around 361.1 feet tall.

Recreational maths with 81370289000

• 81370289000 backwards is 00098207318
• The number of decimal digits it has is: 11
• The sum of 81370289000's digits is 38
• More coming soon!