21078428800
21,078,428,800 is an even composite number composed of six prime numbers multiplied together.
21078428800 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred eighty-four divisors.
Prime factorization of 21078428800:
27 × 52 × 11 × 13 × 73 × 631
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 5 × 11 × 13 × 73 × 631)See below for interesting mathematical facts about the number 21078428800 from the Numbermatics database.
Names of 21078428800
- Cardinal: 21078428800 can be written as Twenty-one billion, seventy-eight million, four hundred twenty-eight thousand, eight hundred.
Scientific notation
- Scientific notation: 2.10784288 × 1010
Factors of 21078428800
Divisors of 21078428800
- Number of divisors d(n): 384
-
Complete list of divisors:
1 2 4 5 8 10 11 13 16 20 22 25 26 32 40 44 50 52 55 64 65 73 80 88 100 104 110 128 130 143 146 160 176 200 208 220 260 275 286 292 320 325 352 365 400 416 440 520 550 572 584 631 640 650 704 715 730 800 803 832 880 949 1040 1100 1144 1168 1262 1300 1408 1430 1460 1600 1606 1664 1760 1825 1898 2080 2200 2288 2336 2524 2600 2860 2920 3155 3200 3212 3520 3575 3650 3796 4015 4160 4400 4576 4672 4745 5048 5200 5720 5840 6310 6424 6941 7040 7150 7300 7592 8030 8203 8320 8800 9152 9344 9490 10096 10400 10439 11440 11680 12620 12848 13882 14300 14600 15184 15775 16060 16406 17600 18304 18980 20075 20192 20800 20878 22880 23360 23725 25240 25696 27764 28600 29200 30368 31550 32120 32812 34705 35200 37960 40150 40384 41015 41600 41756 45760 46063 46720 47450 50480 51392 52195 55528 57200 58400 60736 63100 64240 65624 69410 75920 80300 80768 82030 83512 90233 91520 92126 94900 100960 102784 104390 111056 114400 116800 121472 126200 128480 131248 138820 151840 160600 164060 167024 173525 180466 184252 189800 201920 205075 208780 222112 228800 230315 233600 252400 256960 260975 262496 277640 303680 321200 328120 334048 347050 360932 368504 379600 403840 410150 417560 444224 451165 457600 460630 504800 506693 513920 521950 524992 555280 598819 607360 642400 656240 668096 694100 721864 737008 759200 820300 835120 888448 902330 921260 1009600 1013386 1043900 1049984 1110560 1151575 1197638 1284800 1312480 1336192 1388200 1443728 1474016 1518400 1640600 1670240 1804660 1842520 2019200 2026772 2087800 2221120 2255825 2303150 2395276 2533465 2569600 2624960 2776400 2887456 2948032 2994095 3036800 3281200 3340480 3609320 3685040 4053544 4175600 4442240 4511650 4606300 4790552 5066930 5249920 5552800 5774912 5896064 5988190 6562400 6587009 6680960 7218640 7370080 8107088 8351200 9023300 9212600 9581104 10133860 11105600 11549824 11976380 12667325 13124800 13174018 14437280 14740160 14970475 16214176 16702400 18046600 18425200 19162208 20267720 22211200 23952760 25334650 26249600 26348036 28874560 29480320 29940950 32428352 32935045 33404800 36093200 36850400 38324416 40535440 47905520 50669300 52696072 57749120 59881900 64856704 65870090 72186400 73700800 76648832 81070880 95811040 101338600 105392144 119763800 131740180 144372800 147401600 162141760 164675225 191622080 202677200 210784288 239527600 263480360 288745600 324283520 329350450 383244160 405354400 421568576 479055200 526960720 658700900 810708800 843137152 958110400 1053921440 1317401800 1621417600 1916220800 2107842880 2634803600 4215685760 5269607200 10539214400 21078428800
- Sum of all divisors σ(n): 62109774720
- Sum of proper divisors (its aliquot sum) s(n): 41031345920
- 21078428800 is an abundant number, because the sum of its proper divisors (41031345920) is greater than itself. Its abundance is 19952917120
Bases of 21078428800
- Binary: 100111010000101111101001100100000002
- Hexadecimal: 0x4E85F4C80
- Base-36: 9OLJVR4
Squares and roots of 21078428800
- 21078428800 squared (210784288002) is 444300160676669440000
- 21078428800 cubed (210784288003) is 9365149302651736612175872000000
-
The
square root of 21078428800 is 145184.1203437897 -
The
cube root of 21078428800 is 2762.3544985917
Scales and comparisons
How big is 21078428800?- 21,078,428,800 seconds is equal to 670 years, 11 weeks, 6 days, 7 hours, 6 minutes, 40 seconds.
-
To count from 1 to 21,078,428,800 would take you about one thousand, three hundred forty 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 21078428800 cubic inches would be around 230.2 feet tall.
Recreational maths with 21078428800
- 21078428800 backwards is 00882487012
- 21078428800 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21078428800's digits is 40
- More coming soon!
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