81004291200

Names of 81004291200

• Cardinal: 81004291200 can be written as Eighty-one billion, four million, two hundred ninety-one thousand, two hundred.

Scientific notation

• Scientific notation: 8.10042912 × 10¹⁰

Factors of 81004291200

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 1019

Divisors of 81004291200

• Number of divisors d(n): 864
• Complete list of divisors:
  1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 25 28 30 32 35 36 40 42 45 48 49 50 56 60 61 63 64 70 72 75 80 84 90 96 98 100 105 112 120 122 126 128 140 144 147 150 160 168 175 180 183 192 196 200 210 224 225 240 244 245 252 280 288 294 300 305 315 320 336 350 360 366 384 392 400 420 427 441 448 450 480 488 490 504 525 549 560 576 588 600 610 630 640 672 700 720 732 735 784 800 840 854 882 896 900 915 941 960 976 980 1008 1050 1098 1120 1152 1176 1200 1220 1225 1260 1281 1344 1400 1440 1464 1470 1525 1568 1575 1600 1680 1708 1764 1800 1830 1882 1920 1952 1960 2016 2100 2135 2196 2205 2240 2352 2400 2440 2450 2520 2562 2688 2745 2800 2823 2880 2928 2940 2989 3050 3136 3150 3200 3360 3416 3528 3600 3660 3675 3764 3843 3904 3920 4032 4200 4270 4392 4410 4480 4575 4704 4705 4800 4880 4900 5040 5124 5490 5600 5646 5760 5856 5880 5978 6100 6272 6300 6405 6587 6720 6832 7056 7200 7320 7350 7528 7686 7808 7840 8064 8400 8469 8540 8784 8820 8967 9150 9408 9410 9600 9760 9800 10080 10248 10675 10980 11025 11200 11292 11712 11760 11956 12200 12600 12810 13174 13440 13664 13725 14112 14115 14400 14640 14700 14945 15056 15372 15680 16800 16938 17080 17568 17640 17934 18300 18816 18820 19215 19520 19600 19761 20160 20496 21350 21960 22050 22400 22584 23424 23520 23525 23912 24400 25200 25620 26348 26901 27328 27450 28224 28230 28800 29280 29400 29890 30112 30744 31360 32025 32935 33600 33876 34160 35136 35280 35868 36600 37640 38430 39040 39200 39522 40320 40992 42345 42700 43920 44100 44835 45168 46109 47040 47050 47824 48800 50400 51240 52696 53802 54656 54900 56448 56460 57401 58560 58800 59283 59780 60224 61488 64050 65870 67200 67752 68320 70272 70560 70575 71736 73200 74725 75280 76860 78400 79044 81984 84690 85400 87840 88200 89670 90336 92218 94080 94100 95648 96075 97600 98805 100800 102480 105392 107604 109800 112920 114802 117120 117600 118566 119560 120448 122976 128100 131740 134505 135504 136640 138327 141120 141150 143472 146400 149450 150560 153720 156800 158088 163968 164675 169380 170800 172203 175680 176400 179340 180672 184436 188200 191296 192150 195200 197610 201600 204960 210784 211725 215208 219600 224175 225840 229604 230545 235200 237132 239120 245952 256200 263480 269010 271008 273280 276654 282240 282300 286944 287005 292800 296415 298900 301120 307440 316176 329350 338760 341600 344406 351360 352800 358680 361344 368872 376400 382592 384300 395220 401807 409920 414981 421568 423450 430416 439200 448350 451680 459208 461090 470400 474264 478240 491904 494025 512400 516609 526960 538020 542016 553308 564600 573888 574010 585600 592830 597800 602240 614880 632352 658700 672525 677520 683200 688812 691635 705600 717360 737744 752800 768600 790440 803614 819840 829962 843136 846900 860832 861015 878400 896700 903360 918416 922180 948528 956480 988050 1024800 1033218 1053920 1076040 1084032 1106616 1129200 1147776 1148020 1152725 1185660 1195600 1205421 1229760 1264704 1317400 1345050 1355040 1366400 1377624 1383270 1411200 1434720 1435025 1475488 1482075 1505600 1537200 1580880 1607228 1659924 1693800 1721664 1722030 1756800 1793400 1806720 1836832 1844360 1897056 1912960 1976100 2009035 2049600 2066436 2074905 2107840 2152080 2213232 2258400 2296040 2305450 2371320 2391200 2410842 2459520 2529408 2583045 2634800 2690100 2710080 2755248 2766540 2812649 2869440 2870050 2950976 2964150 3011200 3074400 3161760 3214456 3319848 3387600 3443328 3444060 3458175 3586800 3616263 3673664 3688720 3794112 3952200 4018070 4099200 4132872 4149810 4215680 4304160 4305075 4426464 4516800 4592080 4610900 4742640 4782400 4821684 5166090 5269600 5380200 5420160 5510496 5533080 5625298 5738880 5740100 5901952 5928300 6027105 6148800 6323520 6428912 6639696 6775200 6888120 6916350 7173600 7232526 7347328 7377440 7588224 7904400 8036140 8265744 8299620 8437947 8608320 8610150 8852928 9033600 9184160 9221800 9485280 9564800 9643368 10045175 10332180 10374525 10539200 10760400 11020992 11066160 11250596 11480200 11856600 12054210 12297600 12647040 12857824 12915225 13279392 13550400 13776240 13832700 14063245 14347200 14465052 14754880 15808800 16072280 16531488 16599240 16875894 17216640 17220300 17705856 18081315 18368320 18443600 18970560 19286736 20090350 20664360 20749050 21078400 21520800 22041984 22132320 22501192 22960400 23713200 24108420 25313841 25715648 25830450 26558784 27100800 27552480 27665400 28126490 28694400 28930104 29509760 30135525 31617600 32144560 33062976 33198480 33751788 34440600 36162630 36736640 36887200 37941120 38573472 40180700 41328720 41498100 42189735 43041600 44264640 45002384 45920800 47426400 48216840 50627682 51431296 51660900 53117568 55104960 55330800 56252980 57860208 60271050 63235200 64289120 66125952 66396960 67503576 68881200 70316225 72325260 73774400 77146944 80361400 82657440 82996200 84379470 86083200 88529280 90004768 90406575 91841600 94852800 96433680 101255364 103321800 110209920 110661600 112505960 115720416 120542100 126569205 128578240 132793920 135007152 137762400 140632450 144650520 147548800 154293888 160722800 165314880 165992400 168758940 180009536 180813150 183683200 189705600 192867360 202510728 206643600 210948675 221323200 225011920 231440832 241084200 253138410 257156480 265587840 270014304 275524800 281264900 289301040 321445600 330629760 331984800 337517880 360019072 361626300 385734720 405021456 413287200 421897350 442646400 450023840 462881664 482168400 506276820 540028608 551049600 562529800 578602080 632846025 642891200 663969600 675035760 723252600 771469440 810042912 826574400 843794700 900047680 964336800 1012553640 1080057216 1125059600 1157204160 1265692050 1285782400 1327939200 1350071520 1446505200 1620085824 1653148800 1687589400 1800095360 1928673600 2025107280 2250119200 2314408320 2531384100 2700143040 2893010400 3240171648 3375178800 3857347200 4050214560 4500238400 5062768200 5400286080 5786020800 6750357600 8100429120 9000476800 10125536400 11572041600 13500715200 16200858240 20251072800 27001430400 40502145600 81004291200
• Sum of all divisors σ(n): 342107562420
• Sum of proper divisors (its aliquot sum) s(n): 261103271220
• 81004291200 is an abundant number, because the sum of its proper divisors (261103271220) is greater than itself. Its abundance is 180098980020

Bases of 81004291200

• Binary: 1001011011100001110110110010010000000₂
• Hexadecimal: 0x12DC3B6480
• Base-36: 117NV340

Squares and roots of 81004291200

• 81004291200 squared (81004291200²) is 6561695192814397440000
• 81004291200 cubed (81004291200³) is 531525468164377597782294528000000
• The square root of 81004291200 is 284612.5281852505
• The cube root of 81004291200 is 4326.8251167503

Scales and comparisons

• 81,004,291,200 seconds is equal to 2,575 years, 35 weeks, 4 days, 16 hours.
• To count from 1 to 81,004,291,200 would take you about five thousand, one hundred fifty-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 81004291200 cubic inches would be around 360.6 feet tall.

Recreational maths with 81004291200

• 81004291200 backwards is 00219240018
• The number of decimal digits it has is: 11
• The sum of 81004291200's digits is 27
• More coming soon!