21128139120
21,128,139,120 is an even composite number composed of six prime numbers multiplied together.
21128139120 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred forty divisors.
Prime factorization of 21128139120:
24 × 3 × 5 × 112 × 67 × 10859
(2 × 2 × 2 × 2 × 3 × 5 × 11 × 11 × 67 × 10859)See below for interesting mathematical facts about the number 21128139120 from the Numbermatics database.
Names of 21128139120
- Cardinal: 21128139120 can be written as Twenty-one billion, one hundred twenty-eight million, one hundred thirty-nine thousand, one hundred twenty.
Scientific notation
- Scientific notation: 2.112813912 × 1010
Factors of 21128139120
Divisors of 21128139120
- Number of divisors d(n): 240
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Complete list of divisors:
1 2 3 4 5 6 8 10 11 12 15 16 20 22 24 30 33 40 44 48 55 60 66 67 80 88 110 120 121 132 134 165 176 201 220 240 242 264 268 330 335 363 402 440 484 528 536 605 660 670 726 737 804 880 968 1005 1072 1210 1320 1340 1452 1474 1608 1815 1936 2010 2211 2420 2640 2680 2904 2948 3216 3630 3685 4020 4422 4840 5360 5808 5896 7260 7370 8040 8107 8844 9680 10859 11055 11792 14520 14740 16080 16214 17688 21718 22110 24321 29040 29480 32428 32577 35376 40535 43436 44220 48642 54295 58960 64856 65154 81070 86872 88440 97284 108590 119449 121605 129712 130308 162140 162885 173744 176880 194568 217180 238898 243210 260616 324280 325770 358347 389136 434360 477796 486420 521232 597245 648560 651540 716694 727553 868720 955592 972840 1194490 1303080 1313939 1433388 1455106 1791735 1911184 1945680 2182659 2388980 2606160 2627878 2866776 2910212 3583470 3637765 3941817 4365318 4777960 5255756 5733552 5820424 6569695 7166940 7275530 7883634 8003083 8730636 9555920 10511512 10913295 11640848 13139390 14333880 14551060 15767268 16006166 17461272 19709085 21023024 21826590 24009249 26278780 28667760 29102120 31534536 32012332 34922544 39418170 40015415 43653180 48018498 52557560 58204240 63069072 64024664 78836340 80030830 87306360 88033913 96036996 105115120 120046245 128049328 157672680 160061660 174612720 176067826 192073992 240092490 264101739 315345360 320123320 352135652 384147984 440169565 480184980 528203478 640246640 704271304 880339130 960369960 1056406956 1320508695 1408542608 1760678260 1920739920 2112813912 2641017390 3521356520 4225627824 5282034780 7042713040 10564069560 21128139120
- Sum of all divisors σ(n): 73074072960
- Sum of proper divisors (its aliquot sum) s(n): 51945933840
- 21128139120 is an abundant number, because the sum of its proper divisors (51945933840) is greater than itself. Its abundance is 30817794720
Bases of 21128139120
- Binary: 100111010110101010111010001011100002
- Hexadecimal: 0x4EB55D170
- Base-36: 9PF5CHC
Squares and roots of 21128139120
- 21128139120 squared (211281391202) is 446398262674074374400
- 21128139120 cubed (211281391203) is 9431564596704146599550166528000
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The
square root of 21128139120 is 145355.2170374355 -
The
cube root of 21128139120 is 2764.5243269815
Scales and comparisons
How big is 21128139120?- 21,128,139,120 seconds is equal to 671 years, 42 weeks, 15 hours, 32 minutes.
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To count from 1 to 21,128,139,120 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 21128139120 cubic inches would be around 230.4 feet tall.
Recreational maths with 21128139120
- 21128139120 backwards is 02193182112
- 21128139120 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21128139120's digits is 30
- More coming soon!
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"Number 21128139120 - Facts about the integer". Numbermatics.com. 2024. Web. 29 April 2024.
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