21680672
21,680,672 is an even composite number composed of four prime numbers multiplied together.
21680672 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 21680672:
25 × 132 × 19 × 211
(2 × 2 × 2 × 2 × 2 × 13 × 13 × 19 × 211)See below for interesting mathematical facts about the number 21680672 from the Numbermatics database.
Names of 21680672
- Cardinal: 21680672 can be written as Twenty-one million, six hundred eighty thousand, six hundred seventy-two.
Scientific notation
- Scientific notation: 2.1680672 × 107
Factors of 21680672
Divisors of 21680672
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 4 8 13 16 19 26 32 38 52 76 104 152 169 208 211 247 304 338 416 422 494 608 676 844 988 1352 1688 1976 2704 2743 3211 3376 3952 4009 5408 5486 6422 6752 7904 8018 10972 12844 16036 21944 25688 32072 35659 43888 51376 52117 64144 71318 87776 102752 104234 128288 142636 208468 285272 416936 570544 677521 833872 1141088 1355042 1667744 2710084 5420168 10840336 21680672
- Sum of all divisors σ(n): 48882960
- Sum of proper divisors (its aliquot sum) s(n): 27202288
- 21680672 is an abundant number, because the sum of its proper divisors (27202288) is greater than itself. Its abundance is 5521616
Bases of 21680672
- Binary: 10100101011010010001000002
- Hexadecimal: 0x14AD220
- Base-36: CWOWW
Squares and roots of 21680672
- 21680672 squared (216806722) is 470051538371584
- 21680672 cubed (216806723) is 10191033226529726824448
-
The
square root of 21680672 is 4656.2508523489 -
The
cube root of 21680672 is 278.8416087731
Scales and comparisons
How big is 21680672?- 21,680,672 seconds is equal to 35 weeks, 5 days, 22 hours, 24 minutes, 32 seconds.
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To count from 1 to 21,680,672 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 21680672 cubic inches would be around 23.2 feet tall.
Recreational maths with 21680672
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The information we have on file for 21680672 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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