21087450720
21,087,450,720 is an even composite number composed of six prime numbers multiplied together.
21087450720 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 21087450720:
25 × 32 × 5 × 7 × 167 × 12527
(2 × 2 × 2 × 2 × 2 × 3 × 3 × 5 × 7 × 167 × 12527)See below for interesting mathematical facts about the number 21087450720 from the Numbermatics database.
Names of 21087450720
- Cardinal: 21087450720 can be written as Twenty-one billion, eighty-seven million, four hundred fifty thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.108745072 × 1010
Factors of 21087450720
Divisors of 21087450720
- Number of divisors d(n): 288
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 28 30 32 35 36 40 42 45 48 56 60 63 70 72 80 84 90 96 105 112 120 126 140 144 160 167 168 180 210 224 240 252 280 288 315 334 336 360 420 480 501 504 560 630 668 672 720 835 840 1002 1008 1120 1169 1260 1336 1440 1503 1670 1680 2004 2016 2338 2505 2520 2672 3006 3340 3360 3507 4008 4676 5010 5040 5344 5845 6012 6680 7014 7515 8016 9352 10020 10080 10521 11690 12024 12527 13360 14028 15030 16032 17535 18704 20040 21042 23380 24048 25054 26720 28056 30060 35070 37408 37581 40080 42084 46760 48096 50108 52605 56112 60120 62635 70140 75162 80160 84168 87689 93520 100216 105210 112224 112743 120240 125270 140280 150324 168336 175378 187040 187905 200432 210420 225486 240480 250540 263067 280560 300648 336672 350756 375810 400864 420840 438445 450972 501080 526134 561120 563715 601296 701512 751620 789201 841680 876890 901944 1002160 1052268 1127430 1202592 1315335 1403024 1503240 1578402 1683360 1753780 1803888 2004320 2092009 2104536 2254860 2630670 2806048 3006480 3156804 3507560 3607776 3946005 4184018 4209072 4509720 5261340 6012960 6276027 6313608 7015120 7892010 8368036 8418144 9019440 10460045 10522680 12552054 12627216 14030240 14644063 15784020 16736072 18038880 18828081 20920090 21045360 25104108 25254432 29288126 31380135 31568040 33472144 37656162 41840180 42090720 43932189 50208216 58576252 62760270 63136080 66944288 73220315 75312324 83680360 87864378 94140405 100416432 117152504 125520540 126272160 131796567 146440630 150624648 167360720 175728756 188280810 200832864 219660945 234305008 251041080 263593134 292881260 301249296 334721440 351457512 376561620 439321890 468610016 502082160 527186268 585762520 602498592 658982835 702915024 753123240 878643780 1004164320 1054372536 1171525040 1317965670 1405830048 1506246480 1757287560 2108745072 2343050080 2635931340 3012492960 3514575120 4217490144 5271862680 7029150240 10543725360 21087450720
- Sum of all divisors σ(n): 82740123648
- Sum of proper divisors (its aliquot sum) s(n): 61652672928
- 21087450720 is an abundant number, because the sum of its proper divisors (61652672928) is greater than itself. Its abundance is 40565222208
Bases of 21087450720
- Binary: 100111010001110100011110110011000002
- Hexadecimal: 0x4E8E8F660
- Base-36: 9OQX940
Squares and roots of 21087450720
- 21087450720 squared (210874507202) is 444680577868428518400
- 21087450720 cubed (210874507203) is 9377179771941609025602613248000
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The
square root of 21087450720 is 145215.1876354535 -
The
cube root of 21087450720 is 2762.7485536819
Scales and comparisons
How big is 21087450720?- 21,087,450,720 seconds is equal to 670 years, 26 weeks, 5 days, 17 hours, 12 minutes.
-
To count from 1 to 21,087,450,720 would take you about one thousand, three hundred forty-one 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 21087450720 cubic inches would be around 230.2 feet tall.
Recreational maths with 21087450720
- 21087450720 backwards is 02705478012
- 21087450720 is a
Harshad number . - The number of decimal digits it has is: 11
- The sum of 21087450720's digits is 36
- More coming soon!
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