81426795840
81,426,795,840 is an even composite number composed of six prime numbers multiplied together.
81426795840 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of six hundred seventy-two divisors.
Prime factorization of 81426795840:
26 × 32 × 5 × 133 × 17 × 757
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 13 × 13 × 13 × 17 × 757)See below for interesting mathematical facts about the number 81426795840 from the Numbermatics database.
Names of 81426795840
- Cardinal: 81426795840 can be written as Eighty-one billion, four hundred twenty-six million, seven hundred ninety-five thousand, eight hundred forty.
Scientific notation
- Scientific notation: 8.142679584 × 1010
Factors of 81426795840
Divisors of 81426795840
- Number of divisors d(n): 672
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 17 18 20 24 26 30 32 34 36 39 40 45 48 51 52 60 64 65 68 72 78 80 85 90 96 102 104 117 120 130 136 144 153 156 160 169 170 180 192 195 204 208 221 234 240 255 260 272 288 306 312 320 338 340 360 390 408 416 442 468 480 507 510 520 544 576 585 612 624 663 676 680 720 757 765 780 816 832 845 884 936 960 1014 1020 1040 1088 1105 1170 1224 1248 1326 1352 1360 1440 1514 1521 1530 1560 1632 1690 1768 1872 1989 2028 2040 2080 2197 2210 2271 2340 2448 2496 2535 2652 2704 2720 2873 2880 3028 3042 3060 3120 3264 3315 3380 3536 3744 3785 3978 4056 4080 4160 4394 4420 4542 4680 4896 5070 5304 5408 5440 5746 6056 6084 6120 6240 6591 6630 6760 6813 7072 7488 7570 7605 7956 8112 8160 8619 8788 8840 9084 9360 9792 9841 9945 10140 10608 10816 10985 11355 11492 12112 12168 12240 12480 12869 13182 13260 13520 13626 14144 14365 15140 15210 15912 16224 16320 17238 17576 17680 18168 18720 19682 19773 19890 20280 21216 21970 22710 22984 24224 24336 24480 25738 25857 26364 26520 27040 27252 28730 29523 30280 30420 31824 32448 32955 34065 34476 35152 35360 36336 37349 37440 38607 39364 39546 39780 40560 42432 43095 43940 45420 45968 48448 48672 48960 49205 51476 51714 52728 53040 54080 54504 57460 59046 60560 60840 63648 64345 65910 68130 68952 70304 70720 72672 74698 77214 78728 79092 79560 81120 86190 87880 88569 90840 91936 97344 98410 98865 102952 103428 105456 106080 109008 112047 114920 115821 118092 121120 121680 127296 127933 128690 129285 131820 136260 137904 140608 145344 147615 149396 154428 157456 158184 159120 162240 167297 172380 175760 177138 181680 183872 186745 193035 196820 197730 205904 206856 210912 212160 218016 224094 229840 231642 236184 242240 243360 255866 257380 258570 263640 272520 275808 295230 298792 308856 314912 316368 318240 334594 336141 344760 351520 354276 363360 373490 383799 386070 393640 395460 411808 413712 421824 436032 442845 448188 459680 463284 472368 486720 501891 511732 514760 517140 527280 545040 551616 560235 579105 590460 597584 617712 629824 632736 636480 639665 669188 672282 689520 703040 708552 726720 746980 767598 772140 787280 790920 823616 827424 836485 885690 896376 919360 926568 944736 1003782 1023464 1029520 1034280 1054560 1090080 1120470 1151397 1158210 1180920 1195168 1235424 1265472 1279330 1338376 1344564 1379040 1417104 1493960 1505673 1535196 1544280 1574560 1581840 1654848 1663129 1672970 1680705 1771380 1792752 1853136 1889472 1918995 2007564 2046928 2059040 2068560 2109120 2174861 2180160 2240940 2302794 2316420 2361840 2390336 2470848 2509455 2558660 2676752 2689128 2758080 2834208 2987920 3011346 3070392 3088560 3149120 3163680 3326258 3345940 3361410 3542760 3585504 3706272 3837990 4015128 4093856 4118080 4137120 4349722 4481880 4605588 4632840 4723680 4989387 5018910 5117320 5353504 5378256 5668416 5756985 5975840 6022692 6140784 6177120 6327360 6524583 6652516 6691880 6722820 7085520 7171008 7412544 7528365 7675980 8030256 8187712 8274240 8315645 8699444 8963760 9211176 9265680 9447360 9978774 10037820 10234640 10707008 10756512 10874305 11513970 11951680 12045384 12281568 12354240 13049166 13305032 13383760 13445640 14171040 14968161 15056730 15351960 16060512 16631290 17398888 17927520 18422352 18531360 19573749 19957548 20075640 20469280 21513024 21748610 23027940 24090768 24563136 24946935 26098332 26610064 26767520 26891280 28273193 28342080 29936322 30113460 30703920 32121024 32622915 33262580 34797776 35855040 36844704 37062720 39147498 39915096 40151280 40938560 43497220 46055880 48181536 49893870 52196664 53220128 53535040 53782560 56546386 59872644 60226920 61407840 65245830 66525160 69595552 73689408 74840805 78294996 79830192 80302560 84819579 86994440 92111760 96363072 97868745 99787740 104393328 106440256 107565120 113092772 119745288 120453840 122815680 130491660 133050320 139191104 141365965 149681610 156589992 159660384 160605120 169639158 173988880 184223520 195737490 199575480 208786656 226185544 239490576 240907680 254458737 260983320 266100640 282731930 299363220 313179984 319320768 339278316 347977760 368447040 391474980 399150960 417573312 424097895 452371088 478981152 481815360 508917474 521966640 532201280 565463860 598726440 626359968 678556632 695955520 782949960 798301920 848195790 904742176 957962304 1017834948 1043933280 1130927720 1197452880 1252719936 1272293685 1357113264 1565899920 1596603840 1696391580 1809484352 2035669896 2087866560 2261855440 2394905760 2544587370 2714226528 3131799840 3392783160 4071339792 4523710880 4789811520 5089174740 5428453056 6263599680 6785566320 8142679584 9047421760 10178349480 13571132640 16285359168 20356698960 27142265280 40713397920 81426795840
- Sum of all divisors σ(n): 321674764320
- Sum of proper divisors (its aliquot sum) s(n): 240247968480
- 81426795840 is an abundant number, because the sum of its proper divisors (240247968480) is greater than itself. Its abundance is 158821172640
Bases of 81426795840
- Binary: 10010111101010110101001001101010000002
- Hexadecimal: 0x12F56A4D40
- Base-36: 11ENETS0
Squares and roots of 81426795840
- 81426795840 squared (814267958402) is 6630323080769041305600
- 81426795840 cubed (814267958403) is 539885963851020556583618248704000
-
The
square root of 81426795840 is 285353.8081750445 -
The
cube root of 81426795840 is 4334.3347374533
Scales and comparisons
How big is 81426795840?- 81,426,795,840 seconds is equal to 2,589 years, 6 weeks, 1 day, 18 hours, 24 minutes.
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To count from 1 to 81,426,795,840 would take you about five thousand, one hundred seventy-eight 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 81426795840 cubic inches would be around 361.2 feet tall.
Recreational maths with 81426795840
- 81426795840 backwards is 04859762418
- The number of decimal digits it has is: 11
- The sum of 81426795840's digits is 54
- More coming soon!
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The information we have on file for 81426795840 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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