81473472080

Names of 81473472080

• Cardinal: 81473472080 can be written as Eighty-one billion, four hundred seventy-three million, four hundred seventy-two thousand and eighty.

Scientific notation

• Scientific notation: 8.147347208 × 10¹⁰

Factors of 81473472080

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 292

Divisors of 81473472080

• Number of divisors d(n): 720
• Complete list of divisors:
  1 2 4 5 7 8 10 11 13 14 16 20 22 26 28 35 40 44 49 52 55 56 65 70 73 77 80 88 91 98 104 110 112 121 130 140 143 146 154 176 181 182 196 208 220 242 245 260 280 286 292 308 362 364 365 385 392 440 455 484 490 511 520 539 560 572 584 605 616 637 715 724 728 730 770 784 803 847 880 905 910 949 968 980 1001 1022 1040 1078 1144 1168 1210 1232 1267 1274 1430 1448 1456 1460 1540 1573 1606 1694 1810 1820 1898 1936 1960 1991 2002 2044 2156 2288 2353 2420 2534 2548 2555 2695 2860 2896 2920 3080 3146 3185 3212 3388 3577 3620 3640 3796 3920 3982 4004 4015 4088 4235 4312 4706 4745 4840 5005 5068 5096 5110 5390 5621 5720 5840 5929 6160 6292 6335 6370 6424 6643 6776 7007 7154 7240 7280 7592 7865 7964 8008 8030 8176 8470 8624 8833 8869 9412 9490 9680 9955 10010 10136 10192 10220 10439 10780 11011 11242 11440 11765 11858 12584 12670 12740 12848 13213 13286 13552 13937 14014 14308 14480 15184 15730 15928 16016 16060 16471 16940 17666 17738 17885 18824 18980 19910 20020 20272 20440 20878 21560 21901 22022 22484 23530 23716 25168 25340 25480 25883 26426 26572 27874 28028 28105 28616 29645 31460 31856 32120 32942 33215 33880 35035 35332 35476 35770 37648 37960 39347 39820 40040 40880 41756 43120 43802 44044 44165 44345 44968 46501 47060 47432 50680 50960 51766 52195 52852 53144 55055 55748 56056 56210 57232 59290 61831 62920 64240 65884 66065 66430 67760 69685 70070 70664 70952 71540 73073 75920 77077 78694 79640 80080 82355 83512 87604 88088 88330 88690 89936 92491 93002 94120 94864 97559 101360 103532 104390 105704 106288 109505 110110 111496 112112 112420 114829 115297 118580 123662 125840 129415 131768 132130 132860 139370 140140 141328 141904 143080 145343 146146 153307 154154 157388 159280 164710 167024 171769 175208 176176 176660 177380 181181 184982 186004 188240 195118 196735 207064 208780 211408 219010 220220 222992 224840 229658 230594 232505 237160 247324 258830 263536 264260 265720 278740 280280 284713 286160 290686 292292 306614 308308 309155 314776 329420 343538 350416 353320 354760 362362 365365 369964 372008 385385 390236 393470 414128 417560 432817 438020 440440 449680 459316 461188 462455 465010 474320 487795 494648 511511 517660 528520 531440 557480 560560 569426 574145 576485 581372 584584 613228 616616 618310 629552 647437 658840 687076 706640 709520 724724 726715 730730 739928 744016 766535 770770 780472 786940 803803 835120 858845 865634 876040 880880 905905 918632 922376 924910 930020 975590 989296 1017401 1023022 1035320 1057040 1073149 1114960 1138852 1148290 1152970 1162744 1169168 1202383 1226456 1233232 1236620 1268267 1294874 1317680 1374152 1423565 1449448 1453430 1461460 1479856 1533070 1541540 1560944 1573880 1598773 1607606 1717690 1731268 1752080 1811810 1837264 1844752 1849820 1860040 1889459 1951180 1992991 2034802 2046044 2070640 2146298 2164085 2277704 2296580 2305940 2325488 2404766 2452912 2473240 2536534 2557555 2589748 2748304 2847130 2898896 2906860 2922920 3066140 3083080 3147760 3197546 3215212 3237185 3435380 3462536 3623620 3699640 3720080 3778918 3902360 3985982 4019015 4069604 4092088 4292596 4328170 4555408 4593160 4611880 4809532 4946480 5073068 5087005 5115110 5179496 5365745 5626621 5694260 5813720 5845840 6011915 6132280 6166160 6341335 6395092 6430424 6474370 6870760 6925072 7121807 7247240 7399280 7557836 7804720 7971964 7993865 8038030 8139208 8184176 8416681 8585192 8656340 9186320 9223760 9447295 9619064 9964955 10146136 10174010 10230220 10358992 10731490 11191411 11253242 11388520 11627440 12023830 12264560 12682670 12790184 12860848 12948740 13226213 13741520 13950937 14243614 14494480 15115672 15943928 15987730 16076060 16278416 16833362 17170384 17312680 18894590 19238128 19929910 20292272 20348020 20460440 20784049 21462980 22382822 22506484 22777040 24047660 25365340 25580368 25897480 26452426 27901874 28133105 28487228 30231344 31887856 31975460 32152120 33666724 34625360 35609035 37789180 39859820 40696040 40920880 41568098 42083405 42925960 44765644 45012968 48095320 50730680 51794960 52904852 55803748 55957055 56266210 56974456 63950920 64304240 66131065 67333448 69754685 71218070 75578360 78339877 79719640 81392080 83136196 84166810 85851920 89531288 90025936 92583491 96190640 101461360 103920245 105809704 111607496 111914110 112532420 113948912 127901840 132262130 134666896 139509370 142436140 145488343 151156720 156679754 159439280 166272392 168333620 179062576 185166982 207840490 211619408 223214992 223828220 225064840 264524260 279018740 284872280 290976686 313359508 332544784 336667240 370333964 391699385 415680980 447656440 450129680 462917455 529048520 558037480 569744560 581953372 626719016 673334480 727441715 740667928 783398770 831361960 895312880 925834910 1018418401 1058097040 1116074960 1163906744 1253438032 1454883430 1481335856 1566797540 1662723920 1851669820 2036836802 2327813488 2909766860 3133595080 3703339640 4073673604 5092092005 5819533720 6267190160 7406679280 8147347208 10184184010 11639067440 16294694416 20368368020 40736736040 81473472080
• Sum of all divisors σ(n): 265870764432
• Sum of proper divisors (its aliquot sum) s(n): 184397292352
• 81473472080 is an abundant number, because the sum of its proper divisors (184397292352) is greater than itself. Its abundance is 102923820272

Bases of 81473472080

• Binary: 1001011111000001100101000011001010000₂
• Hexadecimal: 0x12F8328650
• Base-36: 11FF79E8

Squares and roots of 81473472080

• 81473472080 squared (81473472080²) is 6637926652770539526400
• 81473472080 cubed (81473472080³) is 540814931813588406750686822912000
• The square root of 81473472080 is 285435.5830656017
• The cube root of 81473472080 is 4335.1627687417

Scales and comparisons

• 81,473,472,080 seconds is equal to 2,590 years, 31 weeks, 3 days, 1 minute, 20 seconds.
• To count from 1 to 81,473,472,080 would take you about five thousand, one hundred eighty-one 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 81473472080 cubic inches would be around 361.3 feet tall.

Recreational maths with 81473472080

• 81473472080 backwards is 08027437418
• 81473472080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81473472080's digits is 44
• More coming soon!