81966729000
81,966,729,000 is an even composite number composed of seven prime numbers multiplied together.
81966729000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of five hundred twelve divisors.
Prime factorization of 81966729000:
23 × 3 × 53 × 13 × 37 × 43 × 1321
(2 × 2 × 2 × 3 × 5 × 5 × 5 × 13 × 37 × 43 × 1321)See below for interesting mathematical facts about the number 81966729000 from the Numbermatics database.
Names of 81966729000
- Cardinal: 81966729000 can be written as Eighty-one billion, nine hundred sixty-six million, seven hundred twenty-nine thousand.
Scientific notation
- Scientific notation: 8.1966729 × 1010
Factors of 81966729000
Divisors of 81966729000
- Number of divisors d(n): 512
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 20 24 25 26 30 37 39 40 43 50 52 60 65 74 75 78 86 100 104 111 120 125 129 130 148 150 156 172 185 195 200 215 222 250 258 260 296 300 312 325 344 370 375 390 430 444 481 500 516 520 555 559 600 645 650 740 750 780 860 888 925 962 975 1000 1032 1075 1110 1118 1290 1300 1321 1443 1480 1500 1560 1591 1625 1677 1720 1850 1924 1950 2150 2220 2236 2405 2580 2600 2642 2775 2795 2886 3000 3182 3225 3250 3354 3700 3848 3900 3963 4300 4440 4472 4625 4773 4810 4875 5160 5284 5375 5550 5590 5772 6364 6450 6500 6605 6708 7215 7400 7800 7926 7955 8385 8600 9250 9546 9620 9750 10568 10750 11100 11180 11544 12025 12728 12900 13000 13210 13416 13875 13975 14430 15852 15910 16125 16770 17173 18500 19092 19240 19500 19815 20683 21500 22200 22360 23865 24050 25800 26420 27750 27950 28860 31704 31820 32250 33025 33540 34346 36075 37000 38184 39000 39630 39775 41366 41925 43000 47730 48100 48877 51519 52840 55500 55900 56803 57720 60125 62049 63640 64500 66050 67080 68692 69875 72150 79260 79550 82732 83850 85865 95460 96200 97754 99075 103038 103415 111000 111800 113606 119325 120250 124098 129000 132100 137384 139750 144300 146631 158520 159100 165125 165464 167700 170409 171730 180375 190920 195508 198150 198875 206076 206830 209625 227212 238650 240500 244385 248196 257595 264200 279500 284015 288600 293262 310245 318200 330250 335400 340818 343460 360750 391016 396300 397750 412152 413660 419250 429325 454424 477300 481000 488770 495375 496392 515190 517075 559000 568030 586524 596625 620490 635401 660500 681636 686920 721500 733155 738439 792600 795500 827320 838500 852045 858650 954600 977540 990750 1030380 1034150 1136060 1173048 1193250 1221925 1240980 1270802 1287975 1321000 1363272 1420075 1443000 1466310 1476878 1551225 1591000 1677000 1704090 1717300 1906203 1955080 1981500 2060760 2068300 2101711 2146625 2215317 2272120 2386500 2443850 2481960 2541604 2575950 2585375 2840150 2932620 2953756 3102450 3177005 3408180 3434600 3665775 3692195 3812406 3963000 4136600 4203422 4260225 4293250 4430634 4773000 4887700 5083208 5151900 5170750 5680300 5865240 5907512 6109625 6204900 6305133 6354010 6439875 6816360 7100375 7331550 7384390 7624812 7756125 8406844 8520450 8586500 8861268 9531015 9775400 10303800 10341500 10508555 11076585 11360600 12219250 12409800 12610266 12708020 12879750 14200750 14663100 14768780 15249624 15512250 15885025 16813688 17040900 17173000 17722536 18328875 18460975 19062030 20683000 21017110 21301125 22153170 24438500 25220532 25416040 25759500 27322243 28401500 29326200 29537560 31024500 31525665 31770050 34081800 36657750 36921950 38124060 42034220 42602250 44306340 47655075 48877000 50441064 51519000 52542775 54644486 55382925 56803000 62049000 63051330 63540100 73315500 73843900 76248120 79425125 81966729 84068440 85204500 88612680 92304875 95310150 105085550 109288972 110765850 126102660 127080200 136611215 146631000 147687800 157628325 158850250 163933458 170409000 184609750 190620300 210171100 218577944 221531700 238275375 252205320 262713875 273222430 276914625 315256650 317700500 327866916 369219500 381240600 409833645 420342200 443063400 476550750 525427750 546444860 553829250 630513300 635401000 655733832 683056075 738439000 788141625 819667290 953101500 1050855500 1092889720 1107658500 1261026600 1366112150 1576283250 1639334580 1906203000 2049168225 2101711000 2215317000 2732224300 3152566500 3278669160 3415280375 4098336450 5464448600 6305133000 6830560750 8196672900 10245841125 13661121500 16393345800 20491682250 27322243000 40983364500 81966729000
- Sum of all divisors σ(n): 289648719360
- Sum of proper divisors (its aliquot sum) s(n): 207681990360
- 81966729000 is an abundant number, because the sum of its proper divisors (207681990360) is greater than itself. Its abundance is 125715261360
Bases of 81966729000
- Binary: 10011000101011001100100000111001010002
- Hexadecimal: 0x1315990728
- Base-36: 11NKVGVC
Squares and roots of 81966729000
- 81966729000 squared (819667290002) is 6718544662959441000000
- 81966729000 cubed (819667290003) is 550697129663192838438489000000000
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The
square root of 81966729000 is 286298.3216856151 -
The
cube root of 81966729000 is 4343.8938239905
Scales and comparisons
How big is 81966729000?- 81,966,729,000 seconds is equal to 2,606 years, 14 weeks, 6 days, 23 hours, 50 minutes.
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To count from 1 to 81,966,729,000 would take you about five thousand, two hundred twelve 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 81966729000 cubic inches would be around 362 feet tall.
Recreational maths with 81966729000
- 81966729000 backwards is 00092766918
- The number of decimal digits it has is: 11
- The sum of 81966729000's digits is 48
- More coming soon!
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