21142620
21,142,620 is an even composite number composed of five prime numbers multiplied together.
21142620 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty divisors.
Prime factorization of 21142620:
22 × 34 × 5 × 31 × 421
(2 × 2 × 3 × 3 × 3 × 3 × 5 × 31 × 421)See below for interesting mathematical facts about the number 21142620 from the Numbermatics database.
Names of 21142620
- Cardinal: 21142620 can be written as Twenty-one million, one hundred forty-two thousand, six hundred twenty.
Scientific notation
- Scientific notation: 2.114262 × 107
Factors of 21142620
Divisors of 21142620
- Number of divisors d(n): 120
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 27 30 31 36 45 54 60 62 81 90 93 108 124 135 155 162 180 186 270 279 310 324 372 405 421 465 540 558 620 810 837 842 930 1116 1263 1395 1620 1674 1684 1860 2105 2511 2526 2790 3348 3789 4185 4210 5022 5052 5580 6315 7578 8370 8420 10044 11367 12555 12630 13051 15156 16740 18945 22734 25110 25260 26102 34101 37890 39153 45468 50220 52204 56835 65255 68202 75780 78306 113670 117459 130510 136404 156612 170505 195765 227340 234918 261020 341010 352377 391530 469836 587295 682020 704754 783060 1057131 1174590 1409508 1761885 2114262 2349180 3523770 4228524 5285655 7047540 10571310 21142620
- Sum of all divisors σ(n): 68627328
- Sum of proper divisors (its aliquot sum) s(n): 47484708
- 21142620 is an abundant number, because the sum of its proper divisors (47484708) is greater than itself. Its abundance is 26342088
Bases of 21142620
- Binary: 10100001010011100010111002
- Hexadecimal: 0x1429C5C
- Base-36: CL5R0
Squares and roots of 21142620
- 21142620 squared (211426202) is 447010380464400
- 21142620 cubed (211426203) is 9450970610214232728000
-
The
square root of 21142620 is 4598.1104814913 -
The
cube root of 21142620 is 276.5155769283
Scales and comparisons
How big is 21142620?- 21,142,620 seconds is equal to 34 weeks, 6 days, 16 hours, 57 minutes.
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To count from 1 to 21,142,620 would take you about three days!
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 21142620 cubic inches would be around 23 feet tall.
Recreational maths with 21142620
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The information we have on file for 21142620 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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