81142530120

Names of 81142530120

• Cardinal: 81142530120 can be written as Eighty-one billion, one hundred forty-two million, five hundred thirty thousand, one hundred twenty.

Scientific notation

• Scientific notation: 8.114253012 × 10¹⁰

Factors of 81142530120

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 3406

Divisors of 81142530120

• Number of divisors d(n): 384
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 18 19 20 24 29 30 36 38 40 45 57 58 60 72 76 87 90 95 114 116 120 127 145 152 171 174 180 190 228 232 254 261 285 290 342 348 360 380 381 435 456 508 522 551 570 580 635 684 696 760 762 855 870 1016 1044 1102 1140 1143 1160 1270 1305 1368 1524 1653 1710 1740 1905 2088 2204 2280 2286 2413 2540 2610 2755 3048 3221 3306 3420 3480 3683 3810 4408 4572 4826 4959 5080 5220 5510 5715 6442 6612 6840 7239 7366 7620 8265 9144 9652 9663 9918 10440 11020 11049 11430 12065 12884 13224 14478 14732 15240 16105 16530 18415 19304 19326 19836 21717 22040 22098 22860 24130 24795 25768 28956 28989 29464 32210 33060 33147 36195 36830 38652 39672 43434 44196 45720 48260 48315 49590 55245 57912 57978 61199 64420 66120 66294 69977 72390 73660 77304 86868 88392 93409 96520 96630 99180 108585 110490 115956 122398 128840 132588 139954 144780 144945 147320 165735 173736 183597 186818 193260 198360 209931 217170 220980 231912 244796 265176 279908 280227 289560 289890 305995 331470 349885 367194 373636 386520 409067 419862 434340 441960 467045 489592 550791 559816 560454 579780 611990 629793 662940 699770 734388 747272 818134 839724 840681 868680 917985 934090 1049655 1101582 1120908 1159560 1223980 1227201 1259586 1325880 1399540 1401135 1468776 1636268 1679448 1681362 1774771 1835970 1868180 2045335 2099310 2203164 2241816 2447960 2454402 2519172 2753955 2799080 2802270 3148965 3272536 3362724 3549542 3671940 3681603 3736360 4090670 4198620 4203405 4406328 4908804 5038344 5324313 5507910 5604540 6136005 6297930 6725448 7099084 7343880 7363206 7772273 8181340 8397240 8406810 8873855 9817608 10648626 11015820 11209080 11862943 12272010 12595860 14198168 14726412 15544546 15972939 16362680 16813620 17747710 18408015 21297252 22031640 23316819 23725886 24544020 25191720 26621565 29452824 31089092 31945878 33627240 35495420 35588829 36816030 38861365 42594504 46633638 47451772 49088040 53243130 59314715 62178184 63891756 69950457 70990840 71177658 73632060 77722730 79864695 93267276 94903544 106486260 106766487 116584095 118629430 127783512 139900914 142355316 147264120 155445460 159729390 177944145 186534552 212972520 213532974 225395917 233168190 237258860 279801828 284710632 310890920 319458780 349752285 355888290 427065948 450791834 466336380 474517720 533832435 559603656 638917560 676187751 699504570 711776580 854131896 901583668 932672760 1067664870 1126979585 1352375502 1399009140 1423553160 1803167336 2028563253 2135329740 2253959170 2704751004 2798018280 3380938755 4057126506 4270659480 4507918340 5409502008 6761877510 8114253012 9015836680 10142816265 13523755020 16228506024 20285632530 27047510040 40571265060 81142530120
• Sum of all divisors σ(n): 289516032000
• Sum of proper divisors (its aliquot sum) s(n): 208373501880
• 81142530120 is an abundant number, because the sum of its proper divisors (208373501880) is greater than itself. Its abundance is 127230971760

Bases of 81142530120

• Binary: 1001011100100011110001100000001001000₂
• Hexadecimal: 0x12E478C048
• Base-36: 119Y60Y0

Squares and roots of 81142530120

• 81142530120 squared (81142530120²) is 6584110194275107214400
• 81142530120 cubed (81142530120³) is 534251359752366938710681297728000
• The square root of 81142530120 is 284855.2792559759
• The cube root of 81142530120 is 4329.2850510431

Scales and comparisons

• 81,142,530,120 seconds is equal to 2,580 years, 4 weeks, 1 day, 15 hours, 42 minutes.
• To count from 1 to 81,142,530,120 would take you about five thousand, one hundred sixty 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 81142530120 cubic inches would be around 360.8 feet tall.

Recreational maths with 81142530120

• 81142530120 backwards is 02103524118
• The number of decimal digits it has is: 11
• The sum of 81142530120's digits is 27
• More coming soon!