21389567472
21,389,567,472 is an even composite number composed of six prime numbers multiplied together.
What does the number 21389567472 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 360 divisors.
21389567472 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of three hundred sixty divisors.
Prime factorization of 21389567472:
24 × 32 × 7 × 132 × 241 × 521
(2 × 2 × 2 × 2 × 3 × 3 × 7 × 13 × 13 × 241 × 521)See below for interesting mathematical facts about the number 21389567472 from the Numbermatics database.
Names of 21389567472
- Cardinal: 21389567472 can be written as Twenty-one billion, three hundred eighty-nine million, five hundred sixty-seven thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.1389567472 × 1010
Factors of 21389567472
Divisors of 21389567472
- Number of divisors d(n): 360
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 13 14 16 18 21 24 26 28 36 39 42 48 52 56 63 72 78 84 91 104 112 117 126 144 156 168 169 182 208 234 241 252 273 312 336 338 364 468 482 504 507 521 546 624 676 723 728 819 936 964 1008 1014 1042 1092 1183 1352 1446 1456 1521 1563 1638 1687 1872 1928 2028 2084 2169 2184 2366 2704 2892 3042 3126 3133 3276 3374 3549 3647 3856 4056 4168 4338 4368 4689 4732 5061 5784 6084 6252 6266 6552 6748 6773 7098 7294 8112 8336 8676 9378 9399 9464 10122 10647 10941 11568 12168 12504 12532 13104 13496 13546 14196 14588 15183 17352 18756 18798 18928 20244 20319 21294 21882 21931 24336 25008 25064 26992 27092 28197 28392 29176 30366 32823 34704 37512 37596 40488 40638 40729 42588 43764 43862 47411 50128 54184 56394 56784 58352 60732 60957 65646 65793 75024 75192 80976 81276 81458 85176 87528 87724 88049 94822 108368 112788 121464 121914 122187 125561 131292 131586 142233 150384 162552 162916 170352 175056 175448 176098 189644 197379 225576 242928 243828 244374 251122 262584 263172 264147 284466 285103 325104 325832 350896 352196 366561 376683 379288 394758 426699 451152 487656 488748 502244 525168 526344 528294 568932 570206 616343 651664 704392 733122 753366 758576 789516 792441 853398 855309 878927 975312 977496 1004488 1052688 1056588 1130049 1137864 1140412 1232686 1408784 1466244 1506732 1579032 1584882 1632293 1706796 1710618 1757854 1849029 1954992 2008976 2113176 2260098 2275728 2280824 2465372 2565927 2636781 2932488 3013464 3158064 3169764 3264586 3413592 3421236 3515708 3698058 4226352 4520196 4561648 4896879 4930744 5131854 5273562 5547087 5864976 6026928 6339528 6529172 6827184 6842472 7031416 7396116 7910343 9040392 9793758 9861488 10263708 10547124 11094174 11426051 12679056 13058344 13684944 14062832 14690637 14792232 15820686 18080784 19587516 20527416 21094248 21219809 22188348 22852102 26116688 29381274 29584464 31641372 34278153 39175032 41054832 42188496 42439618 44376696 45704204 58762548 63282744 63659427 68556306 78350064 84879236 88753392 91408408 102834459 117525096 126565488 127318854 137112612 148538663 169758472 182816816 190978281 205668918 235050192 254637708 274225224 297077326 339516944 381956562 411337836 445615989 509275416 548450448 594154652 763913124 822675672 891231978 1018550832 1188309304 1336847967 1527826248 1645351344 1782463956 2376618608 2673695934 3055652496 3564927912 5347391868 7129855824 10694783736 21389567472
- Sum of all divisors σ(n): 74530149408
- Sum of proper divisors (its aliquot sum) s(n): 53140581936
- 21389567472 is an abundant number, because the sum of its proper divisors (53140581936) is greater than itself. Its abundance is 31751014464
Bases of 21389567472
- Binary: 100111110101110101011100101111100002
- Hexadecimal: 0x4FAEAE5F0
- Base-36: 9TQSNW0
Squares and roots of 21389567472
- 21389567472 squared (213895674722) is 457513596639240470784
- 21389567472 cubed (213895674723) is 9786017944672426492667412738048
-
The
square root of 21389567472 is 146251.7263898107 -
The
cube root of 21389567472 is 2775.8798701987
Scales and comparisons
How big is 21389567472?- 21,389,567,472 seconds is equal to 680 years, 6 weeks, 2 days, 10 hours, 31 minutes, 12 seconds.
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To count from 1 to 21,389,567,472 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 21389567472 cubic inches would be around 231.3 feet tall.
Recreational maths with 21389567472
- 21389567472 backwards is 27476598312
- The number of decimal digits it has is: 11
- The sum of 21389567472's digits is 54
- More coming soon!
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