81388020000
81,388,020,000 is an even composite number composed of seven prime numbers multiplied together.
81388020000 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one thousand, four hundred forty divisors.
Prime factorization of 81388020000:
25 × 3 × 54 × 72 × 19 × 31 × 47
(2 × 2 × 2 × 2 × 2 × 3 × 5 × 5 × 5 × 5 × 7 × 7 × 19 × 31 × 47)See below for interesting mathematical facts about the number 81388020000 from the Numbermatics database.
Names of 81388020000
- Cardinal: 81388020000 can be written as Eighty-one billion, three hundred eighty-eight million, twenty thousand.
Scientific notation
- Scientific notation: 8.138802 × 1010
Factors of 81388020000
Divisors of 81388020000
- Number of divisors d(n): 1440
-
Complete list of divisors:
1 2 3 4 5 6 7 8 10 12 14 15 16 19 20 21 24 25 28 30 31 32 35 38 40 42 47 48 49 50 56 57 60 62 70 75 76 80 84 93 94 95 96 98 100 105 112 114 120 124 125 133 140 141 147 150 152 155 160 168 175 186 188 190 196 200 210 217 224 228 235 240 245 248 250 266 280 282 285 294 300 304 310 329 336 350 372 375 376 380 392 399 400 420 434 456 465 470 475 480 490 496 500 525 532 560 564 570 588 589 600 608 620 625 651 658 665 672 700 705 735 744 750 752 760 775 784 798 800 840 868 875 893 912 930 931 940 950 980 987 992 1000 1050 1064 1085 1120 1128 1140 1175 1176 1178 1200 1225 1240 1250 1302 1316 1330 1400 1410 1425 1457 1470 1488 1500 1504 1519 1520 1550 1568 1596 1645 1680 1736 1750 1767 1786 1824 1860 1862 1875 1880 1900 1960 1974 1995 2000 2100 2128 2170 2256 2280 2303 2325 2350 2352 2356 2375 2400 2450 2480 2500 2604 2625 2632 2660 2679 2793 2800 2820 2850 2914 2940 2945 2976 3000 3038 3040 3100 3192 3255 3290 3325 3360 3472 3500 3525 3534 3572 3675 3720 3724 3750 3760 3800 3875 3920 3948 3990 4000 4123 4200 4256 4340 4371 4375 4465 4512 4557 4560 4606 4650 4655 4700 4704 4712 4750 4900 4935 4960 5000 5208 5250 5264 5320 5358 5425 5586 5600 5640 5700 5828 5875 5880 5890 6000 6076 6125 6200 6251 6384 6510 6580 6650 6909 6944 7000 7050 7068 7125 7144 7285 7350 7440 7448 7500 7520 7595 7600 7750 7840 7896 7980 8225 8246 8400 8680 8742 8750 8835 8930 9114 9120 9212 9300 9310 9400 9424 9500 9800 9870 9975 10000 10199 10416 10500 10528 10640 10716 10850 11172 11280 11400 11515 11625 11656 11750 11760 11780 11875 12000 12152 12250 12369 12400 12502 12768 13020 13125 13160 13300 13395 13818 13965 14000 14100 14136 14250 14288 14570 14700 14725 14880 14896 15000 15190 15200 15500 15792 15960 16275 16450 16492 16625 16800 17360 17484 17500 17625 17670 17860 18228 18375 18424 18600 18620 18753 18800 18848 19000 19375 19600 19740 19950 20000 20398 20615 20832 21000 21280 21432 21700 21855 22325 22344 22560 22785 22800 23030 23250 23275 23312 23500 23520 23560 23750 24304 24500 24675 24738 24800 25004 26040 26250 26320 26600 26790 27125 27636 27683 27930 28000 28200 28272 28500 28576 28861 29140 29375 29400 29450 29792 30000 30380 30597 30625 31000 31255 31584 31920 32550 32900 32984 33250 34545 34720 34968 35000 35250 35340 35625 35720 36425 36456 36750 36848 37200 37240 37506 37600 37975 38000 38750 39200 39480 39900 40796 41125 41230 42000 42864 43400 43710 43757 44175 44650 44688 45570 45600 46060 46500 46550 46624 47000 47120 47500 48608 49000 49350 49476 49875 50008 50995 52080 52500 52640 53200 53580 54250 55272 55366 55860 56400 56544 57000 57575 57722 58125 58280 58750 58800 58900 60000 60760 61194 61250 61845 62000 62510 63840 65100 65800 65968 66500 66975 69090 69825 69936 70000 70500 70680 71250 71393 71440 72850 72912 73500 73625 73696 74400 74480 75012 75950 76000 77500 78960 79800 81375 81592 82250 82460 83049 83125 84000 85728 86583 86800 87420 87514 88125 88350 89300 89376 91140 91875 92120 93000 93100 93765 94000 94240 95000 98000 98700 98952 99750 100016 101990 103075 104160 105000 106400 107160 108500 109275 110544 110732 111625 111720 112800 113925 114000 115150 115444 116250 116375 116560 117500 117600 117800 121520 122388 122500 123375 123690 124000 125020 130200 131271 131600 131936 133000 133950 135625 138180 138415 139650 139872 140000 141000 141360 142500 142786 142880 144305 145700 145824 147000 147250 148960 150024 151900 152985 155000 156275 157920 159600 162750 163184 164500 164920 166098 166250 172725 173166 173600 174840 175028 176250 176700 178600 182125 182280 183750 184240 186000 186200 187530 188000 189875 190000 193781 196000 197400 197904 199500 200032 203980 205625 206150 210000 214179 214320 217000 218550 218785 220875 221088 221464 223250 223440 227850 228000 230300 230888 232500 232750 233120 235000 235600 243040 244776 245000 246750 247380 249375 250040 254975 260400 262542 263200 266000 267900 271250 276360 276830 279300 282000 282720 285000 285572 287875 288610 291400 294000 294500 300048 303800 305970 309225 310000 312550 319200 325500 326368 329000 329840 332196 332500 334875 345450 346332 349125 349680 350056 352500 353400 356965 357200 364250 364560 367500 368125 368480 372000 372400 375060 379750 380000 387562 394800 395808 399000 406875 407960 411250 412300 415245 420000 428358 428640 432915 434000 437100 437570 441750 442928 446500 446880 455700 460600 461776 465000 465500 468825 470000 471200 489552 490000 493500 494760 498750 500080 509950 515375 520800 525084 532000 535800 542500 546375 552720 553660 558125 558600 564000 569625 570000 571144 575750 577220 581343 581875 582800 588000 589000 600096 607600 611940 616875 618450 620000 625100 651000 656355 658000 659680 664392 665000 669750 690900 692075 692664 698250 699360 700112 705000 706800 713930 714400 721525 728500 729120 735000 736250 744800 750120 759500 764925 775124 781375 789600 798000 813750 815920 822500 824600 830490 856716 863625 865830 868000 874200 875140 883500 885856 893000 910625 911400 921200 923552 930000 931000 937650 940000 949375 968905 979104 980000 987000 989520 997500 1000160 1019900 1030750 1050168 1070895 1071600 1085000 1092750 1093925 1104375 1105440 1107320 1116250 1117200 1139250 1140000 1142288 1151500 1154440 1162686 1163750 1165600 1178000 1215200 1223880 1233750 1236900 1250200 1274875 1302000 1312710 1316000 1328784 1330000 1339500 1356467 1381800 1384150 1385328 1396500 1400224 1410000 1413600 1427860 1439375 1443050 1457000 1470000 1472500 1500240 1519000 1529850 1546125 1550248 1562750 1596000 1627500 1631840 1645000 1649200 1660980 1674375 1713432 1727250 1731660 1745625 1748400 1750280 1767000 1784825 1786000 1821250 1822800 1842400 1860000 1862000 1875300 1898750 1937810 1974000 1979040 1995000 2039800 2061500 2076225 2100336 2141790 2143200 2164575 2170000 2185500 2187850 2208750 2214640 2232500 2234400 2278500 2284576 2303000 2308880 2325372 2327500 2344125 2356000 2447760 2467500 2473800 2500400 2549750 2576875 2604000 2625420 2657568 2660000 2679000 2712934 2731875 2763600 2768300 2770656 2793000 2820000 2848125 2855720 2878750 2886100 2906715 2914000 2940000 2945000 3000480 3038000 3059700 3092250 3100496 3125500 3255000 3281775 3290000 3298400 3321960 3348750 3426864 3454500 3460375 3463320 3491250 3496800 3500560 3534000 3569650 3572000 3607625 3642500 3645600 3724000 3750600 3797500 3824625 3875620 3906875 3948000 3990000 4069401 4079600 4123000 4152450 4200672 4283580 4318125 4329150 4340000 4371000 4375700 4417500 4429280 4465000 4557000 4606000 4617760 4650744 4655000 4688250 4844525 4895520 4935000 4947600 5000800 5099500 5153750 5250840 5354475 5358000 5425868 5463750 5469625 5527200 5536600 5586000 5696250 5711440 5757500 5772200 5813430 5828000 5890000 6076000 6119400 6184500 6200992 6251000 6374375 6510000 6563550 6580000 6643920 6697500 6782335 6853728 6909000 6920750 6926640 6982500 7001120 7068000 7139300 7215250 7285000 7501200 7595000 7649250 7730625 7751240 7813750 7980000 8138802 8159200 8246000 8304900 8567160 8636250 8658300 8742000 8751400 8835000 8924125 8930000 9114000 9212000 9301488 9310000 9376500 9689050 9870000 9895200 10199000 10307500 10381125 10501680 10708950 10716000 10822875 10851736 10927500 10939250 11073200 11172000 11392500 11422880 11515000 11544400 11626860 11720625 11780000 12238800 12369000 12502000 12748750 13020000 13127100 13287840 13395000 13564670 13818000 13841500 13853280 13965000 14278600 14430500 14533575 14570000 15002400 15190000 15298500 15461250 15502480 15627500 16277604 16408875 16492000 16609800 17134320 17272500 17301875 17316600 17484000 17502800 17670000 17848250 17860000 18038125 18228000 18602976 18620000 18753000 19123125 19378100 19740000 20347005 20398000 20615000 20762250 21003360 21417900 21645750 21703472 21855000 21878500 22146400 22785000 23030000 23088800 23253720 23441250 24222625 24477600 24738000 25004000 25497500 26254200 26772375 26790000 27129340 27348125 27636000 27683000 27930000 28557200 28861000 29067150 29140000 30380000 30597000 30922500 31004960 31255000 32555208 32817750 33219600 33911675 34268640 34545000 34603750 34633200 35005600 35340000 35696500 36076250 37506000 38246250 38756200 40694010 40796000 41230000 41524500 42835800 43291500 43406944 43710000 43757000 44620625 45570000 46060000 46507440 46882500 48445250 49476000 50995000 51905625 52508400 53544750 53580000 54114375 54258680 54696250 55366000 55860000 57114400 57722000 58134300 61194000 61845000 62510000 65110416 65635500 66439200 67823350 69090000 69207500 69266400 71393000 72152500 72667875 75012000 76492500 77512400 81388020 82044375 82460000 83049000 85671600 86583000 87420000 87514000 89241250 91140000 93014880 93765000 96890500 101735025 101990000 103811250 105016800 107089500 108228750 108517360 109392500 110732000 115444000 116268600 121113125 122388000 123690000 125020000 130220832 131271000 133861875 135646700 138180000 138415000 142786000 144305000 145335750 152985000 155024800 162776040 164088750 166098000 169558375 171343200 173166000 175028000 178482500 187530000 193781000 203470050 203980000 207622500 214179000 216457500 217034720 218785000 232537200 242226250 247380000 262542000 267723750 271293400 276830000 285572000 288610000 290671500 305970000 325552080 328177500 332196000 339116750 346332000 356965000 363339375 375060000 387562000 406940100 415245000 428358000 432915000 437570000 465074400 484452500 508675125 525084000 535447500 542586800 553660000 577220000 581343000 611940000 651104160 656355000 678233500 713930000 726678750 775124000 813880200 830490000 847791875 856716000 865830000 875140000 968905000 1017350250 1070895000 1085173600 1162686000 1312710000 1356467000 1427860000 1453357500 1627760400 1660980000 1695583750 1731660000 1937810000 2034700500 2141790000 2325372000 2543375625 2625420000 2712934000 2906715000 3255520800 3391167500 3875620000 4069401000 4283580000 5086751250 5425868000 5813430000 6782335000 8138802000 10173502500 11626860000 13564670000 16277604000 20347005000 27129340000 40694010000 81388020000
- Sum of all divisors σ(n): 344625684480
- Sum of proper divisors (its aliquot sum) s(n): 263237664480
- 81388020000 is an abundant number, because the sum of its proper divisors (263237664480) is greater than itself. Its abundance is 181849644480
Bases of 81388020000
- Binary: 10010111100110001101010100001001000002
- Hexadecimal: 0x12F31AA120
- Base-36: 11E0BQ5C
Squares and roots of 81388020000
- 81388020000 squared (813880200002) is 6624009799520400000000
- 81388020000 cubed (813880200003) is 539115042043562305608000000000000
-
The
square root of 81388020000 is 285285.8566420705 -
The
cube root of 81388020000 is 4333.6466177185
Scales and comparisons
How big is 81388020000?- 81,388,020,000 seconds is equal to 2,587 years, 46 weeks, 23 hours, 20 minutes.
-
To count from 1 to 81,388,020,000 would take you about five thousand, one hundred seventy-five 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 81388020000 cubic inches would be around 361.1 feet tall.
Recreational maths with 81388020000
- 81388020000 backwards is 00002088318
- 81388020000 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 81388020000's digits is 30
- More coming soon!
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The information we have on file for 81388020000 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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