21403213720
21,403,213,720 is an even composite number composed of four prime numbers multiplied together.
21403213720 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 21403213720:
23 × 5 × 73 × 12492
(2 × 2 × 2 × 5 × 7 × 7 × 7 × 1249 × 1249)See below for interesting mathematical facts about the number 21403213720 from the Numbermatics database.
Names of 21403213720
- Cardinal: 21403213720 can be written as Twenty-one billion, four hundred three million, two hundred thirteen thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 2.140321372 × 1010
Factors of 21403213720
Divisors of 21403213720
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 4 5 7 8 10 14 20 28 35 40 49 56 70 98 140 196 245 280 343 392 490 686 980 1249 1372 1715 1960 2498 2744 3430 4996 6245 6860 8743 9992 12490 13720 17486 24980 34972 43715 49960 61201 69944 87430 122402 174860 244804 306005 349720 428407 489608 612010 856814 1224020 1560001 1713628 2142035 2448040 3120002 3427256 4284070 6240004 7800005 8568140 10920007 12480008 15600010 17136280 21840014 31200020 43680028 54600035 62400040 76440049 87360056 109200070 152880098 218400140 305760196 382200245 436800280 535080343 611520392 764400490 1070160686 1528800980 2140321372 2675401715 3057601960 4280642744 5350803430 10701606860 21403213720
- Sum of all divisors σ(n): 56205036000
- Sum of proper divisors (its aliquot sum) s(n): 34801822280
- 21403213720 is an abundant number, because the sum of its proper divisors (34801822280) is greater than itself. Its abundance is 13398608560
Bases of 21403213720
- Binary: 100111110111011101100011111100110002
- Hexadecimal: 0x4FBBB1F98
- Base-36: 9TYX5EG
Squares and roots of 21403213720
- 21403213720 squared (214032137202) is 458097557543996238400
- 21403213720 cubed (214032137203) is 9804759928724149793351270848000
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The
square root of 21403213720 is 146298.3722397485 -
The
cube root of 21403213720 is 2776.4700690157
Scales and comparisons
How big is 21403213720?- 21,403,213,720 seconds is equal to 680 years, 28 weeks, 6 days, 9 hours, 8 minutes, 40 seconds.
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To count from 1 to 21,403,213,720 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 21403213720 cubic inches would be around 231.4 feet tall.
Recreational maths with 21403213720
- 21403213720 backwards is 02731230412
- The number of decimal digits it has is: 11
- The sum of 21403213720's digits is 25
- More coming soon!
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