21385789600
21,385,789,600 is an even composite number composed of six prime numbers multiplied together.
21385789600 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21385789600:
25 × 52 × 7 × 47 × 193 × 421
(2 × 2 × 2 × 2 × 2 × 5 × 5 × 7 × 47 × 193 × 421)See below for interesting mathematical facts about the number 21385789600 from the Numbermatics database.
Names of 21385789600
- Cardinal: 21385789600 can be written as Twenty-one billion, three hundred eighty-five million, seven hundred eighty-nine thousand, six hundred.
Scientific notation
- Scientific notation: 2.13857896 × 1010
Factors of 21385789600
Divisors of 21385789600
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 47 50 56 70 80 94 100 112 140 160 175 188 193 200 224 235 280 329 350 376 386 400 421 470 560 658 700 752 772 800 842 940 965 1120 1175 1316 1351 1400 1504 1544 1645 1684 1880 1930 2105 2350 2632 2702 2800 2947 3088 3290 3368 3760 3860 4210 4700 4825 5264 5404 5600 5894 6176 6580 6736 6755 7520 7720 8225 8420 9071 9400 9650 10525 10528 10808 11788 13160 13472 13510 14735 15440 16450 16840 18142 18800 19300 19787 21050 21616 23576 26320 27020 29470 30880 32900 33680 33775 36284 37600 38600 39574 42100 43232 45355 47152 52640 54040 58940 63497 65800 67360 67550 72568 73675 77200 79148 81253 84200 90710 94304 98935 108080 117880 126994 131600 135100 138509 145136 147350 154400 158296 162506 168400 181420 197870 216160 226775 235760 253988 263200 270200 277018 290272 294700 316592 317485 325012 336800 362840 395740 406265 453550 471520 494675 507976 540400 554036 568771 589400 633184 634970 650024 692545 725680 791480 812530 907100 989350 1015952 1080800 1108072 1137542 1178800 1269940 1300048 1385090 1451360 1582960 1587425 1625060 1814200 1978700 2031325 2031904 2216144 2275084 2357600 2539880 2600096 2770180 2843855 3165920 3174850 3250120 3462725 3628400 3818891 3957400 4062650 4432288 4550168 5079760 5540360 5687710 6349700 6500240 6925450 7256800 7637782 7914800 8125300 9100336 10159520 11080720 11375420 12699400 13000480 13850900 14219275 15275564 15829600 16250600 18200672 19094455 22161440 22750840 25398800 26732237 27701800 28438550 30551128 32501200 38188910 45501680 50797600 53464474 55403600 56877100 61102256 65002400 76377820 91003360 95472275 106928948 110807200 113754200 122204512 133661185 152755640 190944550 213857896 227508400 267322370 305511280 381889100 427715792 455016800 534644740 611022560 668305925 763778200 855431584 1069289480 1336611850 1527556400 2138578960 2673223700 3055112800 4277157920 5346447400 10692894800 21385789600
- Sum of all divisors σ(n): 61397070336
- Sum of proper divisors (its aliquot sum) s(n): 40011280736
- 21385789600 is an abundant number, because the sum of its proper divisors (40011280736) is greater than itself. Its abundance is 18625491136
Bases of 21385789600
- Binary: 100111110101011000101000000101000002
- Hexadecimal: 0x4FAB140A0
- Base-36: 9TOJOV4
Squares and roots of 21385789600
- 21385789600 squared (213857896002) is 457351996815468160000
- 21385789600 cubed (213857896003) is 9780833577035472095259136000000
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The
square root of 21385789600 is 146238.8101702143 -
The
cube root of 21385789600 is 2775.7164332593
Scales and comparisons
How big is 21385789600?- 21,385,789,600 seconds is equal to 680 years, 17 hours, 6 minutes, 40 seconds.
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To count from 1 to 21,385,789,600 would take you about one thousand, three hundred sixty 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 21385789600 cubic inches would be around 231.3 feet tall.
Recreational maths with 21385789600
- 21385789600 backwards is 00698758312
- The number of decimal digits it has is: 11
- The sum of 21385789600's digits is 49
- More coming soon!
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