21680748
21,680,748 is an even composite number composed of five prime numbers multiplied together.
What does the number 21680748 look like?
This visualization shows the relationship between its 5 prime factors (large circles) and 72 divisors.
21680748 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21680748:
22 × 32 × 19 × 29 × 1093
(2 × 2 × 3 × 3 × 19 × 29 × 1093)See below for interesting mathematical facts about the number 21680748 from the Numbermatics database.
Names of 21680748
- Cardinal: 21680748 can be written as Twenty-one million, six hundred eighty thousand, seven hundred forty-eight.
Scientific notation
- Scientific notation: 2.1680748 × 107
Factors of 21680748
Divisors of 21680748
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 6 9 12 18 19 29 36 38 57 58 76 87 114 116 171 174 228 261 342 348 522 551 684 1044 1093 1102 1653 2186 2204 3279 3306 4372 4959 6558 6612 9837 9918 13116 19674 19836 20767 31697 39348 41534 62301 63394 83068 95091 124602 126788 186903 190182 249204 285273 373806 380364 570546 602243 747612 1141092 1204486 1806729 2408972 3613458 5420187 7226916 10840374 21680748
- Sum of all divisors σ(n): 59732400
- Sum of proper divisors (its aliquot sum) s(n): 38051652
- 21680748 is an abundant number, because the sum of its proper divisors (38051652) is greater than itself. Its abundance is 16370904
Bases of 21680748
- Binary: 10100101011010010011011002
- Hexadecimal: 0x14AD26C
- Base-36: CWOZ0
Squares and roots of 21680748
- 21680748 squared (216807482) is 470054833839504
- 21680748 cubed (216807483) is 10191140398656158668992
-
The
square root of 21680748 is 4656.2590134137 -
The
cube root of 21680748 is 278.8419345923
Scales and comparisons
How big is 21680748?- 21,680,748 seconds is equal to 35 weeks, 5 days, 22 hours, 25 minutes, 48 seconds.
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To count from 1 to 21,680,748 would take you about five 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 21680748 cubic inches would be around 23.2 feet tall.
Recreational maths with 21680748
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The information we have on file for 21680748 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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