21131065440
21,131,065,440 is an even composite number composed of five prime numbers multiplied together.
21131065440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 21131065440:
25 × 32 × 5 × 41 × 713
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 41 × 71 × 71 × 71)See below for interesting mathematical facts about the number 21131065440 from the Numbermatics database.
Names of 21131065440
- Cardinal: 21131065440 can be written as Twenty-one billion, one hundred thirty-one million, sixty-five thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.113106544 × 1010
Factors of 21131065440
Divisors of 21131065440
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 41 45 48 60 71 72 80 82 90 96 120 123 142 144 160 164 180 205 213 240 246 284 288 328 355 360 369 410 426 480 492 568 615 639 656 710 720 738 820 852 984 1065 1136 1230 1278 1312 1420 1440 1476 1640 1704 1845 1968 2130 2272 2460 2556 2840 2911 2952 3195 3280 3408 3690 3936 4260 4920 5041 5112 5680 5822 5904 6390 6560 6816 7380 8520 8733 9840 10082 10224 11360 11644 11808 12780 14555 14760 15123 17040 17466 19680 20164 20448 23288 25205 25560 26199 29110 29520 30246 34080 34932 40328 43665 45369 46576 50410 51120 52398 58220 59040 60492 69864 75615 80656 87330 90738 93152 100820 102240 104796 116440 120984 130995 139728 151230 161312 174660 181476 201640 206681 209592 226845 232880 241968 261990 279456 302460 349320 357911 362952 403280 413362 419184 453690 465760 483936 523980 604920 620043 698640 715822 725904 806560 826724 838368 907380 1033405 1047960 1073733 1209840 1240086 1397280 1431644 1451808 1653448 1789555 1814760 1860129 2066810 2095920 2147466 2419680 2480172 2863288 3100215 3221199 3306896 3579110 3629520 3720258 4133620 4191840 4294932 4960344 5368665 5726576 6200430 6442398 6613792 7158220 7259040 7440516 8267240 8589864 9300645 9920688 10737330 11453152 12400860 12884796 14316440 14674351 14881032 16105995 16534480 17179728 18601290 19841376 21474660 24801720 25769592 28632880 29348702 29762064 32211990 33068960 34359456 37202580 42949320 44023053 49603440 51539184 57265760 58697404 59524128 64423980 73371755 74405160 85898640 88046106 99206880 103078368 117394808 128847960 132069159 146743510 148810320 171797280 176092212 220115265 234789616 257695920 264138318 293487020 297620640 352184424 440230530 469579232 515391840 528276636 586974040 660345795 704368848 880461060 1056553272 1173948080 1320691590 1408737696 1760922120 2113106544 2347896160 2641383180 3521844240 4226213088 5282766360 7043688480 10565532720 21131065440
- Sum of all divisors σ(n): 74923797312
- Sum of proper divisors (its aliquot sum) s(n): 53792731872
- 21131065440 is an abundant number, because the sum of its proper divisors (53792731872) is greater than itself. Its abundance is 32661666432
Bases of 21131065440
- Binary: 100111010111000001001111000011000002
- Hexadecimal: 0x4EB827860
- Base-36: 9PGW2G0
Squares and roots of 21131065440
- 21131065440 squared (211310654402) is 446521926629562393600
- 21131065440 cubed (211310654403) is 9435484052004161577724637184000
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The
square root of 21131065440 is 145365.2827878789 -
The
cube root of 21131065440 is 2764.6519531349
Scales and comparisons
How big is 21131065440?- 21,131,065,440 seconds is equal to 671 years, 46 weeks, 6 days, 12 hours, 24 minutes.
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To count from 1 to 21,131,065,440 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 21131065440 cubic inches would be around 230.4 feet tall.
Recreational maths with 21131065440
- 21131065440 backwards is 04456013112
- The number of decimal digits it has is: 11
- The sum of 21131065440's digits is 27
- More coming soon!
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