16668988021
16,668,988,021 is an odd composite number composed of four prime numbers multiplied together.
16668988021 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of forty-eight divisors.
Prime factorization of 16668988021:
72 × 19 × 313 × 601
(7 × 7 × 19 × 31 × 31 × 31 × 601)See below for interesting mathematical facts about the number 16668988021 from the Numbermatics database.
Names of 16668988021
- Cardinal: 16668988021 can be written as Sixteen billion, six hundred sixty-eight million, nine hundred eighty-eight thousand and twenty-one.
Scientific notation
- Scientific notation: 1.6668988021 × 1010
Factors of 16668988021
Divisors of 16668988021
- Number of divisors d(n): 48
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Complete list of divisors:
1 7 19 31 49 133 217 589 601 931 961 1519 4123 4207 6727 11419 18259 18631 28861 29449 29791 47089 79933 127813 130417 208537 353989 559531 566029 577561 894691 912919 1459759 2477923 3962203 4042927 10973659 17345461 17904391 27735421 28300489 76815613 125330737 340183429 537709291 877315159 2381284003 16668988021
- Sum of all divisors σ(n): 21126443520
- Sum of proper divisors (its aliquot sum) s(n): 4457455499
- 16668988021 is a deficient number, because the sum of its proper divisors (4457455499) is less than itself. Its deficiency is 12211532522
Bases of 16668988021
- Binary: 11111000011000110010010010011101012
- Hexadecimal: 0x3E18C9275
- Base-36: 7NOA9H1
Squares and roots of 16668988021
- 16668988021 squared (166689880212) is 277855161644241496441
- 16668988021 cubed (166689880213) is 4631564361020880167806143133261
-
The
square root of 16668988021 is 129108.4351272217 -
The
cube root of 16668988021 is 2554.4833608545
Scales and comparisons
How big is 16668988021?- 16,668,988,021 seconds is equal to 530 years, 1 week, 1 day, 2 hours, 27 minutes, 1 second.
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To count from 1 to 16,668,988,021 would take you about one thousand and sixty 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 16668988021 cubic inches would be around 212.9 feet tall.
Recreational maths with 16668988021
- 16668988021 backwards is 12088986661
- The number of decimal digits it has is: 11
- The sum of 16668988021's digits is 55
- More coming soon!
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