81797496480

Names of 81797496480

• Cardinal: 81797496480 can be written as Eighty-one billion, seven hundred ninety-seven million, four hundred ninety-six thousand, four hundred eighty.

Scientific notation

• Scientific notation: 8.179749648 × 10¹⁰

Factors of 81797496480

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 730

Divisors of 81797496480

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 17 18 20 21 24 28 30 32 34 35 36 40 42 43 45 48 51 56 60 63 68 70 72 80 84 85 86 90 96 102 105 112 119 120 126 129 136 140 144 153 160 168 170 172 180 204 210 215 224 238 240 252 255 258 272 280 288 289 301 306 315 336 340 344 357 360 387 408 420 430 476 480 504 510 516 544 560 578 595 602 612 630 645 653 672 680 688 714 720 731 765 774 816 840 860 867 903 952 1008 1020 1032 1071 1120 1156 1190 1204 1224 1260 1290 1306 1360 1376 1428 1440 1445 1462 1505 1530 1548 1632 1680 1720 1734 1785 1806 1904 1935 1959 2016 2023 2040 2064 2142 2193 2312 2380 2408 2448 2520 2580 2601 2612 2709 2720 2856 2890 2924 3010 3060 3096 3265 3360 3440 3468 3570 3612 3655 3808 3870 3918 4046 4080 4128 4284 4335 4386 4515 4571 4624 4760 4816 4896 5040 5117 5160 5202 5224 5355 5418 5712 5780 5848 5877 6020 6069 6120 6192 6530 6579 6880 6936 7140 7224 7310 7740 7836 8092 8160 8568 8670 8772 9030 9142 9248 9520 9632 9795 10080 10115 10234 10320 10404 10448 10710 10836 10965 11101 11424 11560 11696 11754 12040 12138 12240 12384 12427 13005 13060 13158 13545 13713 13872 14280 14448 14620 15351 15480 15672 16184 17136 17340 17544 18060 18207 18284 19040 19590 20230 20468 20640 20808 20896 21420 21672 21930 22202 22855 23120 23392 23508 24080 24276 24480 24854 25585 26010 26120 26316 27090 27426 27744 28079 28560 28896 29240 29385 30345 30702 30960 31344 32368 32895 33303 34272 34680 35088 36120 36414 36568 37281 39180 40460 40936 41139 41616 42840 43344 43860 44404 45710 46053 46240 47016 48160 48552 49708 51170 52020 52240 52632 54180 54852 55505 56158 57120 58480 58770 60690 61404 61920 62135 62688 64736 65790 66606 68565 69360 70176 72240 72828 73136 74562 76755 77707 78360 80920 81872 82278 83232 84237 85680 86688 86989 87720 88808 91035 91420 92106 94032 97104 99416 99909 102340 104040 104480 105264 108360 109704 111010 111843 112316 116960 117540 121380 122808 124270 131580 133212 137130 138720 140395 144480 145656 146272 149124 153510 155414 156720 161840 163744 164556 166515 168474 171360 173978 175440 177616 182070 182840 184212 186405 188064 188717 194208 196553 198832 199818 204680 205695 208080 210528 216720 219408 222020 223686 224632 230265 233121 235080 242760 245616 248540 252711 260967 263160 266424 274260 280790 291312 298248 307020 310828 313440 323680 329112 333030 336948 347956 350880 355232 364140 365680 368424 372810 377434 388535 393106 397664 399636 409360 411390 416160 421185 433440 434945 438816 444040 447372 449264 460530 466242 470160 477343 485520 491232 497080 499545 505422 521934 526320 532848 548520 559215 561580 566151 582624 589659 596496 614040 621656 658224 666060 673896 695912 699363 728280 731360 736848 745620 754868 777070 782901 786212 799272 818720 822780 842370 869890 888080 894744 898528 921060 932484 940320 943585 954686 971040 982765 994160 999090 1010844 1043868 1052640 1065696 1097040 1118430 1123160 1132302 1165605 1179318 1192992 1228080 1243312 1263555 1304835 1316448 1321019 1332120 1347792 1391824 1398726 1432029 1456560 1473696 1491240 1509736 1554140 1565802 1572424 1598544 1645560 1684740 1698453 1739780 1768977 1776160 1789488 1842120 1864968 1887170 1909372 1965530 1988320 1998180 2021688 2087736 2194080 2236860 2246320 2264604 2331210 2358636 2386715 2456160 2486624 2527110 2609670 2642038 2664240 2695584 2783648 2797452 2830755 2864058 2913120 2948295 2982480 3019472 3108280 3131604 3144848 3197088 3291120 3341401 3369480 3396906 3479560 3496815 3537954 3578976 3684240 3729936 3774340 3818744 3914505 3931060 3963057 3996360 4043376 4175472 4296087 4473720 4492640 4529208 4662420 4717272 4773430 5054220 5219340 5284076 5328480 5594904 5661510 5728116 5896590 5964960 6038944 6216560 6263208 6289696 6582240 6605095 6682802 6738960 6793812 6959120 6993630 7075908 7160145 7368480 7459872 7548680 7637488 7829010 7862120 7926114 7992720 8086752 8114831 8350944 8492265 8592174 8844885 8947440 9058416 9324840 9434544 9546860 10024203 10108440 10438680 10568152 11189808 11323020 11456232 11793180 11889171 12433120 12526416 13210190 13365604 13477920 13587624 13918240 13987260 14151816 14320290 15097360 15274976 15658020 15724240 15852228 15985440 16229662 16707005 16984530 17184348 17689770 17894880 18116832 18649680 18869088 19093720 19815285 20048406 20216880 20877360 21136304 21480435 22379616 22646040 22912464 23586360 23778342 24344493 25052832 26420380 26731208 27175248 27974520 28303632 28640580 30072609 30194720 31316040 31448480 31704456 32459324 33414010 33969060 34368696 35379540 37299360 38187440 39630570 40096812 40433760 40574155 41754720 42272608 42960870 45292080 45824928 47172720 47556684 48688986 50121015 52840760 53462416 54350496 55949040 56607264 56803817 57281160 59445855 60145218 62632080 63408912 64918648 66828020 67938120 68737392 70759080 73033479 76374880 79261140 80193624 81148310 85921740 90584160 94345440 95113368 97377972 100242030 105681520 106924832 111898080 113607634 114562320 118891710 120290436 121722465 125264160 126817824 129837296 133656040 135876240 137474784 141518160 146066958 150363045 158522280 160387248 162296620 170411451 171843480 190226736 194755944 200484060 211363040 227215268 229124640 237783420 240580872 243444930 259674592 267312080 271752480 283036320 284019085 292133916 300726090 317044560 320774496 324593240 340822902 343686960 365167395 380453472 389511888 400968120 454430536 475566840 481161744 486889860 511234353 534624160 568038170 584267832 601452180 634089120 649186480 681645804 687373920 730334790 779023776 801936240 852057255 908861072 951133680 962323488 973779720 1022468706 1136076340 1168535664 1202904360 1298372960 1363291608 1460669580 1603872480 1704114510 1817722144 1902267360 1947559440 2044937412 2272152680 2337071328 2405808720 2556171765 2726583216 2921339160 3408229020 3895118880 4089874824 4544305360 4811617440 5112343530 5453166432 5842678320 6816458040 8179749648 9088610720 10224687060 11685356640 13632916080 16359499296 20449374120 27265832160 40898748240 81797496480
• Sum of all divisors σ(n): 347291328384
• Sum of proper divisors (its aliquot sum) s(n): 265493831904
• 81797496480 is an abundant number, because the sum of its proper divisors (265493831904) is greater than itself. Its abundance is 183696335424

Bases of 81797496480

• Binary: 1001100001011100000101011111010100000₂
• Hexadecimal: 0x130B82BEA0
• Base-36: 11KS4880

Squares and roots of 81797496480

• 81797496480 squared (81797496480²) is 6690830430395612390400
• 81797496480 cubed (81797496480³) is 547293178578561989511188385792000
• The square root of 81797496480 is 286002.6162118103
• The cube root of 81797496480 is 4340.9022255877

Scales and comparisons

• 81,797,496,480 seconds is equal to 2,600 years, 47 weeks, 1 day, 6 hours, 48 minutes.
• To count from 1 to 81,797,496,480 would take you about five thousand, two hundred 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 81797496480 cubic inches would be around 361.7 feet tall.

Recreational maths with 81797496480

• 81797496480 backwards is 08469479718
• 81797496480 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81797496480's digits is 63
• More coming soon!