81990106640000
81,990,106,640,000 is an even composite number composed of four prime numbers multiplied together.
81990106640000 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of four hundred eighty divisors.
Prime factorization of 81990106640000:
27 × 54 × 133 × 6832
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 5 × 5 × 13 × 13 × 13 × 683 × 683)See below for interesting mathematical facts about the number 81990106640000 from the Numbermatics database.
Names of 81990106640000
- Cardinal: 81990106640000 can be written as Eighty-one trillion, nine hundred ninety billion, one hundred six million, six hundred forty thousand.
Scientific notation
- Scientific notation: 8.199010664 × 1013
Factors of 81990106640000
Divisors of 81990106640000
- Number of divisors d(n): 480
-
Complete list of divisors:
1 2 4 5 8 10 13 16 20 25 26 32 40 50 52 64 65 80 100 104 125 128 130 160 169 200 208 250 260 320 325 338 400 416 500 520 625 640 650 676 683 800 832 845 1000 1040 1250 1300 1352 1366 1600 1625 1664 1690 2000 2080 2197 2500 2600 2704 2732 3200 3250 3380 3415 4000 4160 4225 4394 5000 5200 5408 5464 6500 6760 6830 8000 8125 8320 8450 8788 8879 10000 10400 10816 10928 10985 13000 13520 13660 16000 16250 16900 17075 17576 17758 20000 20800 21125 21632 21856 21970 26000 27040 27320 32500 33800 34150 35152 35516 40000 41600 42250 43712 43940 44395 52000 54080 54640 54925 65000 67600 68300 70304 71032 80000 84500 85375 87424 87880 88790 104000 105625 108160 109280 109850 115427 130000 135200 136600 140608 142064 169000 170750 175760 177580 208000 211250 218560 219700 221975 230854 260000 270400 273200 274625 281216 284128 338000 341500 351520 355160 422500 426875 437120 439400 443950 461708 466489 520000 540800 546400 549250 568256 577135 676000 683000 703040 710320 845000 853750 878800 887900 923416 932978 1040000 1092800 1098500 1109875 1136512 1154270 1352000 1366000 1373125 1406080 1420640 1500551 1690000 1707500 1757600 1775800 1846832 1865956 2185600 2197000 2219750 2308540 2332445 2704000 2732000 2746250 2841280 2885675 3001102 3380000 3415000 3515200 3551600 3693664 3731912 4394000 4439500 4617080 4664890 5464000 5492500 5549375 5682560 5771350 6002204 6064357 6760000 6830000 7030400 7103200 7387328 7463824 7502755 8788000 8879000 9234160 9329780 10928000 10985000 11098750 11542700 11662225 12004408 12128714 13520000 13660000 14206400 14428375 14774656 14927648 15005510 17576000 17758000 18468320 18659560 21970000 22197500 23085400 23324450 24008816 24257428 27320000 28412800 28856750 29855296 30011020 30321785 35152000 35516000 36936640 37319120 37513775 43940000 44395000 46170800 46648900 48017632 48514856 54640000 57713500 58311125 59710592 60022040 60643570 71032000 72141875 73873280 74638240 75027550 78836641 87880000 88790000 92341600 93297800 96035264 97029712 115427000 116622250 120044080 121287140 142064000 144283750 149276480 150055100 151608925 157673282 175760000 177580000 184683200 186595600 187568875 192070528 194059424 230854000 233244500 240088160 242574280 288567500 291555625 298552960 300110200 303217850 315346564 355160000 369366400 373191200 375137750 388118848 394183205 461708000 466489000 480176320 485148560 577135000 583111250 600220400 606435700 630693128 710320000 746382400 750275500 758044625 776237696 788366410 923416000 932978000 937844375 960352640 970297120 1024876333 1154270000 1166222500 1200440800 1212871400 1261386256 1492764800 1500551000 1516089250 1576732820 1846832000 1865956000 1875688750 1940594240 1970916025 2049752666 2308540000 2332445000 2400881600 2425742800 2522772512 3001102000 3032178500 3153465640 3731912000 3751377500 3790223125 3881188480 3941832050 4099505332 4617080000 4664890000 4801763200 4851485600 5045545024 5124381665 6002204000 6064357000 6306931280 7463824000 7502755000 7580446250 7883664100 8199010664 9234160000 9329780000 9702971200 9854580125 10091090048 10248763330 12004408000 12128714000 12613862560 15005510000 15160892500 15767328200 16398021328 18659560000 19405942400 19709160250 20497526660 24008816000 24257428000 25227725120 25621908325 30011020000 30321785000 31534656400 32796042656 37319120000 39418320500 40995053320 48514856000 49272900625 50455450240 51243816650 60022040000 60643570000 63069312800 65592085312 78836641000 81990106640 97029712000 98545801250 102487633300 120044080000 121287140000 126138625600 128109541625 131184170624 157673282000 163980213280 197091602500 204975266600 242574280000 252277251200 256219083250 315346564000 327960426560 394183205000 409950533200 485148560000 512438166500 630693128000 640547708125 655920853120 788366410000 819901066400 1024876333000 1261386256000 1281095416250 1576732820000 1639802132800 2049752666000 2562190832500 3153465640000 3279604265600 4099505332000 5124381665000 6306931280000 8199010664000 10248763330000 16398021328000 20497526660000 40995053320000 81990106640000
- Sum of all divisors σ(n): 221434816379700
- Sum of proper divisors (its aliquot sum) s(n): 139444709739700
- 81990106640000 is an abundant number, because the sum of its proper divisors (139444709739700) is greater than itself. Its abundance is 57454603099700
Bases of 81990106640000
- Binary: 100101010010001110011110010111001101110100000002
- Hexadecimal: 0x4A91CF2E6E80
- Base-36: T29QGKKU8
Squares and roots of 81990106640000
- 81990106640000 squared (819901066400002) is 6722377586838572089600000000
- 81990106640000 cubed (819901066400003) is 551168455219240386091631634944000000000000
-
The
square root of 81990106640000 is 9054838.8522380673 -
The
cube root of 81990106640000 is 43443.0675711799
Scales and comparisons
How big is 81990106640000?- 81,990,106,640,000 seconds is equal to 2,607,031 years, 40 weeks, 3 days, 14 hours, 13 minutes, 20 seconds.
-
To count from 1 to 81,990,106,640,000 would take you about six million, five hundred seventeen thousand, five hundred seventy-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 81990106640000 cubic inches would be around 3620.3 feet tall.
Recreational maths with 81990106640000
- 81990106640000 backwards is 00004660109918
- The number of decimal digits it has is: 14
- The sum of 81990106640000's digits is 44
- More coming soon!
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