21188420
21,188,420 is an even composite number composed of six prime numbers multiplied together.
21188420 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21188420:
22 × 5 × 11 × 19 × 37 × 137
(2 × 2 × 5 × 11 × 19 × 37 × 137)See below for interesting mathematical facts about the number 21188420 from the Numbermatics database.
Names of 21188420
- Cardinal: 21188420 can be written as Twenty-one million, one hundred eighty-eight thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.118842 × 107
Factors of 21188420
Divisors of 21188420
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 10 11 19 20 22 37 38 44 55 74 76 95 110 137 148 185 190 209 220 274 370 380 407 418 548 685 703 740 814 836 1045 1370 1406 1507 1628 2035 2090 2603 2740 2812 3014 3515 4070 4180 5069 5206 6028 7030 7535 7733 8140 10138 10412 13015 14060 15070 15466 20276 25345 26030 28633 30140 30932 38665 50690 52060 55759 57266 77330 96311 101380 111518 114532 143165 154660 192622 223036 278795 286330 385244 481555 557590 572660 963110 1059421 1115180 1926220 2118842 4237684 5297105 10594210 21188420
- Sum of all divisors σ(n): 52859520
- Sum of proper divisors (its aliquot sum) s(n): 31671100
- 21188420 is an abundant number, because the sum of its proper divisors (31671100) is greater than itself. Its abundance is 10482680
Bases of 21188420
- Binary: 10100001101001111010001002
- Hexadecimal: 0x1434F44
- Base-36: CM538
Squares and roots of 21188420
- 21188420 squared (211884202) is 448949142096400
- 21188420 cubed (211884203) is 9512522981378203688000
-
The
square root of 21188420 is 4603.0880938779 -
The
cube root of 21188420 is 276.7150993419
Scales and comparisons
How big is 21188420?- 21,188,420 seconds is equal to 35 weeks, 5 hours, 40 minutes, 20 seconds.
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To count from 1 to 21,188,420 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 21188420 cubic inches would be around 23.1 feet tall.
Recreational maths with 21188420
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The information we have on file for 21188420 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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