81138384000
81,138,384,000 is an even composite number composed of five prime numbers multiplied together.
81138384000 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 81138384000:
27 × 32 × 53 × 173 × 3257
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 5 × 5 × 173 × 3257)See below for interesting mathematical facts about the number 81138384000 from the Numbermatics database.
Names of 81138384000
- Cardinal: 81138384000 can be written as Eighty-one billion, one hundred thirty-eight million, three hundred eighty-four thousand.
Scientific notation
- Scientific notation: 8.1138384 × 1010
Factors of 81138384000
Divisors of 81138384000
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 25 30 32 36 40 45 48 50 60 64 72 75 80 90 96 100 120 125 128 144 150 160 173 180 192 200 225 240 250 288 300 320 346 360 375 384 400 450 480 500 519 576 600 640 692 720 750 800 865 900 960 1000 1038 1125 1152 1200 1384 1440 1500 1557 1600 1730 1800 1920 2000 2076 2250 2400 2595 2768 2880 3000 3114 3200 3257 3460 3600 4000 4152 4325 4500 4800 5190 5536 5760 6000 6228 6514 6920 7200 7785 8000 8304 8650 9000 9600 9771 10380 11072 12000 12456 12975 13028 13840 14400 15570 16000 16285 16608 17300 18000 19542 20760 21625 22144 24000 24912 25950 26056 27680 28800 29313 31140 32570 33216 34600 36000 38925 39084 41520 43250 48000 48855 49824 51900 52112 55360 58626 62280 64875 65140 66432 69200 72000 77850 78168 81425 83040 86500 97710 99648 103800 104224 110720 117252 124560 129750 130280 138400 144000 146565 155700 156336 162850 166080 173000 194625 195420 199296 207600 208448 234504 244275 249120 259500 260560 276800 293130 311400 312672 325700 332160 346000 389250 390840 407125 415200 416896 469008 488550 498240 519000 521120 553600 563461 586260 622800 625344 651400 692000 732825 778500 781680 814250 830400 938016 977100 996480 1038000 1042240 1126922 1172520 1221375 1245600 1250688 1302800 1384000 1465650 1557000 1563360 1628500 1660800 1690383 1876032 1954200 2076000 2084480 2253844 2345040 2442750 2491200 2605600 2768000 2817305 2931300 3114000 3126720 3257000 3380766 3664125 3752064 3908400 4152000 4507688 4690080 4885500 4982400 5071149 5211200 5634610 5862600 6228000 6253440 6514000 6761532 7328250 7816800 8304000 8451915 9015376 9380160 9771000 10142298 10422400 11269220 11725200 12456000 13028000 13523064 14086525 14656500 15633600 16903830 18030752 18760320 19542000 20284596 22538440 23450400 24912000 25355745 26056000 27046128 28173050 29313000 31267200 33807660 36061504 39084000 40569192 42259575 45076880 46900800 50711490 52112000 54092256 56346100 58626000 67615320 70432625 72123008 78168000 81138384 84519150 90153760 93801600 101422980 108184512 112692200 117252000 126778725 135230640 140865250 156336000 162276768 169038300 180307520 202845960 211297875 216369024 225384400 234504000 253557450 270461280 281730500 324553536 338076600 360615040 405691920 422595750 450768800 469008000 507114900 540922560 563461000 633893625 649107072 676153200 811383840 845191500 901537600 1014229800 1081845120 1126922000 1267787250 1352306400 1622767680 1690383000 1803075200 2028459600 2253844000 2535574500 2704612800 3245535360 3380766000 4056919200 4507688000 5071149000 5409225600 6761532000 8113838400 9015376000 10142298000 13523064000 16227676800 20284596000 27046128000 40569192000 81138384000
- Sum of all divisors σ(n): 293162528880
- Sum of proper divisors (its aliquot sum) s(n): 212024144880
- 81138384000 is an abundant number, because the sum of its proper divisors (212024144880) is greater than itself. Its abundance is 130885760880
Bases of 81138384000
- Binary: 10010111001000011100101111100100000002
- Hexadecimal: 0x12E4397C80
- Base-36: 119VP5S0
Squares and roots of 81138384000
- 81138384000 squared (811383840002) is 6583437358131456000000
- 81138384000 cubed (811383840003) is 534169468404015599407104000000000
-
The
square root of 81138384000 is 284848.0015727687 -
The
cube root of 81138384000 is 4329.2113123143
Scales and comparisons
How big is 81138384000?- 81,138,384,000 seconds is equal to 2,579 years, 49 weeks, 2 days, 16 hours.
-
To count from 1 to 81,138,384,000 would take you about five thousand, one hundred fifty-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 81138384000 cubic inches would be around 360.8 feet tall.
Recreational maths with 81138384000
- 81138384000 backwards is 00048383118
- 81138384000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81138384000's digits is 36
- More coming soon!
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