21427279988
21,427,279,988 is an even composite number composed of two prime numbers multiplied together.
21427279988 is an even composite number. It is composed of two distinct prime numbers multiplied together. It has a total of six divisors.
Prime factorization of 21427279988:
22 × 5356819997
(2 × 2 × 5356819997)See below for interesting mathematical facts about the number 21427279988 from the Numbermatics database.
Names of 21427279988
- Cardinal: 21427279988 can be written as Twenty-one billion, four hundred twenty-seven million, two hundred seventy-nine thousand, nine hundred eighty-eight.
Scientific notation
- Scientific notation: 2.1427279988 × 1010
Factors of 21427279988
- Number of distinct prime factors ω(n): 2
- Total number of prime factors Ω(n): 3
- Sum of prime factors: 5356819999
Divisors of 21427279988
- Number of divisors d(n): 6
- Complete list of divisors:
- Sum of all divisors σ(n): 37497739986
- Sum of proper divisors (its aliquot sum) s(n): 16070459998
- 21427279988 is a deficient number, because the sum of its proper divisors (16070459998) is less than itself. Its deficiency is 5356819990
Bases of 21427279988
- Binary: 100111111010010101001011000011101002
- Hexadecimal: 0x4FD2A5874
- Base-36: 9UD8Z1W
Squares and roots of 21427279988
- 21427279988 squared (214272799882) is 459128327684145280144
- 21427279988 cubed (214272799883) is 9837871227710392546114184958272
-
The
square root of 21427279988 is 146380.5997664991 -
The
cube root of 21427279988 is 2777.5103215825
Scales and comparisons
How big is 21427279988?- 21,427,279,988 seconds is equal to 681 years, 16 weeks, 4 days, 22 hours, 13 minutes, 8 seconds.
-
To count from 1 to 21,427,279,988 would take you about one thousand, three hundred sixty-two 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 21427279988 cubic inches would be around 231.5 feet tall.
Recreational maths with 21427279988
- 21427279988 backwards is 88997272412
- The number of decimal digits it has is: 11
- The sum of 21427279988's digits is 59
- More coming soon!
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