81133146990

Names of 81133146990

• Cardinal: 81133146990 can be written as Eighty-one billion, one hundred thirty-three million, one hundred forty-six thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 8.113314699 × 10¹⁰

Factors of 81133146990

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 179

Divisors of 81133146990

• Number of divisors d(n): 960
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 23 27 30 31 35 42 45 46 47 49 54 61 62 63 69 70 81 90 93 94 98 105 115 122 126 135 138 141 147 155 161 162 183 186 189 207 210 217 230 235 245 270 279 282 294 305 310 315 322 329 345 366 378 405 414 423 427 434 441 465 470 483 490 549 558 567 610 621 630 651 658 690 705 713 735 805 810 837 846 854 882 915 930 945 966 987 1035 1081 1085 1098 1127 1134 1242 1269 1281 1302 1323 1395 1403 1410 1426 1449 1457 1470 1519 1610 1645 1647 1674 1830 1863 1890 1891 1953 1974 2070 2115 2135 2139 2162 2170 2205 2254 2303 2415 2511 2538 2562 2646 2745 2790 2806 2835 2867 2898 2914 2961 2989 3038 3105 3243 3255 3290 3294 3381 3565 3726 3782 3807 3843 3906 3969 4185 4209 4230 4270 4278 4347 4371 4410 4557 4606 4830 4935 4941 4991 5022 5405 5490 5635 5670 5673 5734 5859 5922 5978 6210 6345 6405 6417 6486 6510 6615 6762 6909 7015 7130 7245 7285 7567 7595 7614 7686 7938 8235 8370 8418 8601 8694 8742 8883 8967 9114 9315 9455 9729 9765 9821 9870 9882 9982 10143 10199 10695 10810 11270 11346 11515 11529 11718 12555 12627 12690 12810 12834 13041 13113 13230 13237 13671 13818 14030 14335 14490 14570 14805 14945 14973 15134 15190 16215 16470 16905 17019 17202 17577 17766 17934 18630 18910 19035 19215 19251 19458 19530 19642 19845 20069 20286 20398 20727 21045 21390 21735 21855 22701 22785 23030 23058 24705 24955 25110 25254 25803 26082 26226 26474 26649 26901 27342 28365 28670 29187 29295 29463 29610 29890 29946 30429 30597 32085 32430 33511 33810 34038 34545 34587 34937 35154 37835 37881 38070 38430 38502 39339 39690 39711 40138 41013 41454 42090 43005 43470 43493 43710 44415 44835 44919 45402 45570 48645 49105 49410 49910 50715 50995 51057 51606 52969 53298 53802 56730 57645 57753 58374 58590 58926 60207 60858 61194 62181 63135 64170 65205 65565 65941 66185 67022 68103 68355 68747 69090 69174 69874 71393 74865 75670 75762 77409 78678 79422 80703 82026 85095 86010 86986 87561 87885 88389 88830 88877 89670 89838 91287 91791 92659 96255 97290 98210 100345 100533 101430 101990 102114 103635 104811 105938 113505 113643 115290 115506 118017 119133 120414 123039 124362 126270 129015 130410 130479 131130 131882 132370 133245 134505 134757 136206 136710 137494 140483 142786 145935 147315 149730 152145 152985 153171 154818 158907 161406 167555 170190 172935 174685 175122 175770 176778 177754 180621 182574 183582 185318 186543 189405 192510 196695 197823 198555 200690 201066 204309 205065 206241 207270 209622 214179 217465 224595 227010 227286 232227 234577 236034 238266 242109 246078 255285 258030 260958 264845 265167 266490 266631 269010 269514 275373 277977 280966 288765 291870 294630 301035 301599 304290 304451 305970 306342 310905 314433 317814 329705 335110 340515 343735 345870 349370 356965 357399 361242 373086 378810 387045 391437 393390 395646 397110 403515 404271 408618 410130 412482 421449 428358 434930 437805 441945 444385 449190 456435 458955 461587 463295 464454 469154 476721 484218 502665 510570 524055 529690 530334 533262 541863 550746 555954 568215 577530 590085 593469 595665 602070 603198 608902 612927 615195 618723 621810 622139 628866 642537 652395 659410 673785 681030 687470 702415 703731 713930 714798 765855 774090 782874 794535 795501 799893 807030 808542 826119 833931 842898 875610 883890 888770 903105 904797 912870 913353 917910 923174 926590 932715 943299 953442 989115 1005330 1021545 1031205 1048110 1070895 1072197 1083726 1136430 1161135 1172885 1174311 1180170 1186938 1191330 1210545 1225854 1230390 1237446 1244278 1264347 1285074 1304790 1325835 1333155 1347570 1376865 1384761 1389885 1404830 1407462 1430163 1507995 1522255 1531710 1572165 1589070 1591002 1599786 1625589 1642039 1652238 1667862 1780407 1786995 1806210 1809594 1826706 1856169 1865430 1866417 1886598 1927611 1957185 1978230 2021355 2043090 2044171 2062410 2107245 2111193 2131157 2141790 2144394 2307935 2322270 2345770 2348622 2383605 2399679 2421090 2501793 2528694 2651670 2666310 2709315 2714391 2740059 2753730 2769522 2779770 2829897 2860326 2967345 3015990 3044510 3064635 3093615 3110695 3144330 3212685 3231109 3251178 3284078 3518655 3522933 3560814 3573990 3712338 3732834 3793041 3855222 3914370 3977505 3999465 4042710 4088342 4130595 4154283 4169655 4214490 4222386 4262314 4290489 4354973 4523985 4566765 4615870 4716495 4767210 4799358 4926117 5003586 5341221 5360985 5418630 5428782 5480118 5568507 5599251 5659794 5782833 5871555 5934690 6129270 6132513 6187230 6221390 6321735 6333579 6393471 6425370 6462218 6923805 7037310 7045866 7150815 7199037 7505379 7586082 7955010 7998930 8127945 8210195 8220177 8261190 8308566 8339310 8580978 8709946 8902035 9047970 9133530 9280845 9332085 9432990 9638055 9693327 9852234 10220855 10555965 10655785 10682442 10721970 11137014 11198502 11379123 11565666 11743110 11998395 12265026 12462849 12508965 12643470 12667158 12786942 13064919 13571955 13700295 13847610 14149485 14301630 14309197 14398074 14778351 15010758 16155545 16255890 16420390 16440354 16797753 17614665 17804070 18397539 18561690 18664170 18965205 19000737 19180413 19276110 19386654 20441710 20771415 21111930 21311570 21452445 21774865 22758246 23996790 24630585 24660531 24925698 25017930 26129838 26706105 27143910 27400590 27842535 27996255 28298970 28618394 28914165 29079981 29556702 30662565 31667895 31967355 32311090 33595506 35229330 35995185 36795078 37388547 37526895 37930410 38001474 38360826 39194757 41100885 41542830 42904890 42927591 43549730 44335053 48466635 49261170 49321062 50393259 53412210 55192617 55685070 55992510 56895615 57541239 57828330 58159962 61325130 62314245 63335790 63934710 65324595 71545985 71990370 73891755 74777094 75053790 78389514 82201770 83988765 85855182 87239943 88670106 91987695 95003685 95902065 96933270 100164379 100786518 110385234 113791230 115082478 117584271 123302655 124628490 128782773 130649190 133005159 143091970 145399905 147783510 165577851 167977530 172623717 174479886 183975390 186942735 190007370 191804130 195973785 200328758 214637955 221675265 235168542 246605310 251966295 257565546 261719829 266010318 275963085 287706195 290799810 300493137 331155702 345247434 352752813 373885470 386348319 391947570 429275910 436199715 443350530 500821895 503932590 523439658 551926170 575412390 587921355 600986274 643913865 665025795 705505626 772696638 827889255 863118585 872399430 901479411 1001643790 1159044957 1175842710 1287827730 1308599145 1330051590 1502465685 1655778510 1726237170 1763764065 1802958822 1931741595 2318089914 2617198290 2704438233 3004931370 3527528130 3863483190 4507397055 5408876466 5795224785 8113314699 9014794110 11590449570 13522191165 16226629398 27044382330 40566573495 81133146990
• Sum of all divisors σ(n): 283744124928
• Sum of proper divisors (its aliquot sum) s(n): 202610977938
• 81133146990 is an abundant number, because the sum of its proper divisors (202610977938) is greater than itself. Its abundance is 121477830948

Bases of 81133146990

• Binary: 1001011100011111010011001001101101110₂
• Hexadecimal: 0x12E3E9936E
• Base-36: 119SKWVI

Squares and roots of 81133146990

• 81133146990 squared (81133146990²) is 6582587540500946060100
• 81133146990 cubed (81133146990³) is 534066042498005834928154674099000
• The square root of 81133146990 is 284838.8087848987
• The cube root of 81133146990 is 4329.1181685205

Scales and comparisons

• 81,133,146,990 seconds is equal to 2,579 years, 40 weeks, 5 days, 1 hour, 16 minutes, 30 seconds.
• To count from 1 to 81,133,146,990 would take you about five thousand, one hundred fifty-nine 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 81133146990 cubic inches would be around 360.8 feet tall.

Recreational maths with 81133146990

• 81133146990 backwards is 09964133118
• 81133146990 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81133146990's digits is 45
• More coming soon!