21402239420
21,402,239,420 is an even composite number composed of five prime numbers multiplied together.
21402239420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 21402239420:
22 × 5 × 17 × 31 × 2030573
(2 × 2 × 5 × 17 × 31 × 2030573)See below for interesting mathematical facts about the number 21402239420 from the Numbermatics database.
Names of 21402239420
- Cardinal: 21402239420 can be written as Twenty-one billion, four hundred two million, two hundred thirty-nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 2.140223942 × 1010
Factors of 21402239420
Divisors of 21402239420
- Number of divisors d(n): 48
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Complete list of divisors:
1 2 4 5 10 17 20 31 34 62 68 85 124 155 170 310 340 527 620 1054 2108 2635 5270 10540 2030573 4061146 8122292 10152865 20305730 34519741 40611460 62947763 69039482 125895526 138078964 172598705 251791052 314738815 345197410 629477630 690394820 1070111971 1258955260 2140223942 4280447884 5350559855 10701119710 21402239420
- Sum of all divisors σ(n): 49123646208
- Sum of proper divisors (its aliquot sum) s(n): 27721406788
- 21402239420 is an abundant number, because the sum of its proper divisors (27721406788) is greater than itself. Its abundance is 6319167368
Bases of 21402239420
- Binary: 100111110111010110001000001101111002
- Hexadecimal: 0x4FBAC41BC
- Base-36: 9TYC9MK
Squares and roots of 21402239420
- 21402239420 squared (214022394202) is 458055852191001936400
- 21402239420 cubed (214022394203) is 9803421016323955012516412888000
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The
square root of 21402239420 is 146295.0423630273 -
The
cube root of 21402239420 is 2776.4279389587
Scales and comparisons
How big is 21402239420?- 21,402,239,420 seconds is equal to 680 years, 27 weeks, 2 days, 2 hours, 30 minutes, 20 seconds.
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To count from 1 to 21,402,239,420 would take you about one thousand, three hundred sixty-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 21402239420 cubic inches would be around 231.4 feet tall.
Recreational maths with 21402239420
- 21402239420 backwards is 02493220412
- The number of decimal digits it has is: 11
- The sum of 21402239420's digits is 29
- More coming soon!
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