21121579440
21,121,579,440 is an even composite number composed of five prime numbers multiplied together.
21121579440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of four hundred twenty divisors.
Prime factorization of 21121579440:
24 × 36 × 5 × 132 × 2143
(2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 13 × 13 × 2143)See below for interesting mathematical facts about the number 21121579440 from the Numbermatics database.
Names of 21121579440
- Cardinal: 21121579440 can be written as Twenty-one billion, one hundred twenty-one million, five hundred seventy-nine thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.112157944 × 1010
Factors of 21121579440
Divisors of 21121579440
- Number of divisors d(n): 420
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 13 15 16 18 20 24 26 27 30 36 39 40 45 48 52 54 60 65 72 78 80 81 90 104 108 117 120 130 135 144 156 162 169 180 195 208 216 234 240 243 260 270 312 324 338 351 360 390 405 432 468 486 507 520 540 585 624 648 676 702 720 729 780 810 845 936 972 1014 1040 1053 1080 1170 1215 1296 1352 1404 1458 1521 1560 1620 1690 1755 1872 1944 2028 2106 2143 2160 2340 2430 2535 2704 2808 2916 3042 3120 3159 3240 3380 3510 3645 3888 4056 4212 4286 4563 4680 4860 5070 5265 5616 5832 6084 6318 6429 6480 6760 7020 7290 7605 8112 8424 8572 9126 9360 9477 9720 10140 10530 10715 11664 12168 12636 12858 13520 13689 14040 14580 15210 15795 16848 17144 18252 18954 19287 19440 20280 21060 21430 22815 24336 25272 25716 27378 27859 28080 29160 30420 31590 32145 34288 36504 37908 38574 40560 41067 42120 42860 45630 47385 50544 51432 54756 55718 57861 58320 60840 63180 64290 68445 73008 75816 77148 82134 83577 84240 85720 91260 94770 96435 102864 109512 111436 115722 121680 123201 126360 128580 136890 139295 151632 154296 164268 167154 171440 173583 182520 189540 192870 205335 219024 222872 231444 246402 250731 252720 257160 273780 278590 289305 308592 328536 334308 347166 362167 365040 379080 385740 410670 417885 445744 462888 492804 501462 514320 520749 547560 557180 578610 616005 657072 668616 694332 724334 752193 758160 771480 821340 835770 867915 925776 985608 1002924 1041498 1086501 1095120 1114360 1157220 1232010 1253655 1337232 1388664 1448668 1504386 1542960 1562247 1642680 1671540 1735830 1810835 1971216 2005848 2082996 2173002 2228720 2256579 2314440 2464020 2507310 2603745 2777328 2897336 3008772 3124494 3259503 3285360 3343080 3471660 3621670 3760965 4011696 4165992 4346004 4513158 4628880 4928040 5014620 5207490 5432505 5794672 6017544 6248988 6519006 6686160 6769737 6943320 7243340 7521930 7811235 8331984 8692008 9026316 9778509 9856080 10029240 10414980 10865010 11282895 12035088 12497976 13038012 13539474 13886640 14486680 15043860 15622470 16297515 17384016 18052632 19557018 20058480 20309211 20829960 21730020 22565790 24995952 26076024 27078948 28973360 29335527 30087720 31244940 32595030 33848685 36105264 39114036 40618422 41659920 43460040 45131580 48892545 52152048 54157896 58671054 60175440 62489880 65190060 67697370 78228072 81236844 86920080 88006581 90263160 97785090 101546055 108315792 117342108 124979760 130380120 135394740 146677635 156456144 162473688 176013162 180526320 195570180 203092110 234684216 260760240 264019743 270789480 293355270 324947376 352026324 391140360 406184220 440032905 469368432 528039486 541578960 586710540 704052648 782280720 812368440 880065810 1056078972 1173421080 1320098715 1408105296 1624736880 1760131620 2112157944 2346842160 2640197430 3520263240 4224315888 5280394860 7040526480 10560789720 21121579440
- Sum of all divisors σ(n): 79764376896
- Sum of proper divisors (its aliquot sum) s(n): 58642797456
- 21121579440 is an abundant number, because the sum of its proper divisors (58642797456) is greater than itself. Its abundance is 37521218016
Bases of 21121579440
- Binary: 100111010101111000110111001101100002
- Hexadecimal: 0x4EAF1B9B0
- Base-36: 9PB8R00
Squares and roots of 21121579440
- 21121579440 squared (211215794402) is 446121118040230713600
- 21121579440 cubed (211215794403) is 9422782634548350133230288384000
-
The
square root of 21121579440 is 145332.6509769915 -
The
cube root of 21121579440 is 2764.2381955827
Scales and comparisons
How big is 21121579440?- 21,121,579,440 seconds is equal to 671 years, 31 weeks, 1 day, 17 hours, 24 minutes.
-
To count from 1 to 21,121,579,440 would take you about one thousand, three hundred forty-three 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 21121579440 cubic inches would be around 230.4 feet tall.
Recreational maths with 21121579440
- 21121579440 backwards is 04497512112
- 21121579440 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21121579440's digits is 36
- More coming soon!
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The information we have on file for 21121579440 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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