81365083100
81,365,083,100 is an even composite number composed of six prime numbers multiplied together.
81365083100 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred twenty-four divisors.
Prime factorization of 81365083100:
22 × 52 × 72 × 312 × 37 × 467
(2 × 2 × 5 × 5 × 7 × 7 × 31 × 31 × 37 × 467)See below for interesting mathematical facts about the number 81365083100 from the Numbermatics database.
Names of 81365083100
- Cardinal: 81365083100 can be written as Eighty-one billion, three hundred sixty-five million, eighty-three thousand, one hundred.
Scientific notation
- Scientific notation: 8.13650831 × 1010
Factors of 81365083100
Divisors of 81365083100
- Number of divisors d(n): 324
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Complete list of divisors:
1 2 4 5 7 10 14 20 25 28 31 35 37 49 50 62 70 74 98 100 124 140 148 155 175 185 196 217 245 259 310 350 370 434 467 490 518 620 700 740 775 868 925 934 961 980 1036 1085 1147 1225 1295 1519 1550 1813 1850 1868 1922 2170 2294 2335 2450 2590 3038 3100 3269 3626 3700 3844 4340 4588 4670 4805 4900 5180 5425 5735 6076 6475 6538 6727 7252 7595 8029 9065 9340 9610 10850 11470 11675 12950 13076 13454 14477 15190 16058 16345 17279 18130 19220 21700 22883 22940 23350 24025 25900 26908 28675 28954 30380 32116 32690 33635 34558 35557 36260 37975 40145 45325 45766 46700 47089 48050 56203 57350 57908 65380 67270 69116 71114 72385 75950 80290 81725 86395 90650 91532 94178 96100 101339 112406 114415 114700 120953 134540 142228 144770 151900 160580 163450 168175 172790 177785 181300 188356 200725 202678 224812 228830 235445 241906 248899 281015 289540 326900 336350 345580 355570 361925 401450 405356 431975 448787 457660 470890 483812 497798 506695 535649 562030 572075 604765 672700 709373 711140 723850 802900 846671 863950 888925 897574 941780 995596 1013390 1071298 1124060 1144150 1177225 1209530 1244495 1405075 1418746 1447700 1693342 1727900 1742293 1777850 1795148 2026780 2142596 2243935 2288300 2354450 2419060 2488990 2533475 2678245 2810150 2837492 3023825 3141509 3386684 3484586 3546865 3555700 3749543 4233355 4487870 4708900 4977980 5066950 5356490 5620300 6047650 6222475 6283018 6969172 7093730 7499086 8466710 8711465 8975740 10133900 10712980 11219675 12095300 12444950 12566036 13391225 14187460 14998172 15707545 16605119 16933420 17422930 17734325 18747715 21166775 21990563 22439350 24889900 26246801 26782450 31415090 33210238 34845860 35468650 37495430 42333550 43557325 43981126 44878700 52493602 53564900 62830180 66420476 70937300 74990860 78537725 83025595 84667100 87114650 87962252 93738575 104987204 109952815 116235833 131234005 157075450 166051190 174229300 187477150 219905630 232471666 262468010 314150900 332102380 374954300 415127975 439811260 464943332 524936020 549764075 581179165 656170025 813650831 830255950 1099528150 1162358330 1312340050 1627301662 1660511900 2199056300 2324716660 2624680100 2905895825 3254603324 4068254155 5811791650 8136508310 11623583300 16273016620 20341270775 40682541550 81365083100
- Sum of all divisors σ(n): 218430503928
- Sum of proper divisors (its aliquot sum) s(n): 137065420828
- 81365083100 is an abundant number, because the sum of its proper divisors (137065420828) is greater than itself. Its abundance is 55700337728
Bases of 81365083100
- Binary: 10010111100011011110010100011110111002
- Hexadecimal: 0x12F1BCA3DC
- Base-36: 11DMO3X8
Squares and roots of 81365083100
- 81365083100 squared (813650831002) is 6620276747869905610000
- 81365083100 cubed (813650831003) is 538659367735432617946806191000000
-
The
square root of 81365083100 is 285245.6539546221 -
The
cube root of 81365083100 is 4333.2394744299
Scales and comparisons
How big is 81365083100?- 81,365,083,100 seconds is equal to 2,587 years, 8 weeks, 1 day, 11 hours, 58 minutes, 20 seconds.
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To count from 1 to 81,365,083,100 would take you about five thousand, one hundred seventy-four 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 81365083100 cubic inches would be around 361.1 feet tall.
Recreational maths with 81365083100
- 81365083100 backwards is 00138056318
- 81365083100 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81365083100's digits is 35
- More coming soon!
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