21680064
21,680,064 is an even composite number composed of five prime numbers multiplied together.
21680064 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred sixty-eight divisors.
Prime factorization of 21680064:
26 × 32 × 7 × 19 × 283
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 7 × 19 × 283)See below for interesting mathematical facts about the number 21680064 from the Numbermatics database.
Names of 21680064
- Cardinal: 21680064 can be written as Twenty-one million, six hundred eighty thousand and sixty-four.
Scientific notation
- Scientific notation: 2.1680064 × 107
Factors of 21680064
Divisors of 21680064
- Number of divisors d(n): 168
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Complete list of divisors:
1 2 3 4 6 7 8 9 12 14 16 18 19 21 24 28 32 36 38 42 48 56 57 63 64 72 76 84 96 112 114 126 133 144 152 168 171 192 224 228 252 266 283 288 304 336 342 399 448 456 504 532 566 576 608 672 684 798 849 912 1008 1064 1132 1197 1216 1344 1368 1596 1698 1824 1981 2016 2128 2264 2394 2547 2736 3192 3396 3648 3962 4032 4256 4528 4788 5094 5377 5472 5943 6384 6792 7924 8512 9056 9576 10188 10754 10944 11886 12768 13584 15848 16131 17829 18112 19152 20376 21508 23772 25536 27168 31696 32262 35658 37639 38304 40752 43016 47544 48393 54336 63392 64524 71316 75278 76608 81504 86032 95088 96786 112917 126784 129048 142632 150556 163008 172064 190176 193572 225834 258096 285264 301112 338751 344128 380352 387144 451668 516192 570528 602224 677502 774288 903336 1032384 1141056 1204448 1355004 1548576 1806672 2408896 2710008 3097152 3613344 5420016 7226688 10840032 21680064
- Sum of all divisors σ(n): 75021440
- Sum of proper divisors (its aliquot sum) s(n): 53341376
- 21680064 is an abundant number, because the sum of its proper divisors (53341376) is greater than itself. Its abundance is 31661312
Bases of 21680064
- Binary: 10100101011001111110000002
- Hexadecimal: 0x14ACFC0
- Base-36: CWOG0
Squares and roots of 21680064
- 21680064 squared (216800642) is 470025175044096
- 21680064 cubed (216800643) is 10190175876567204102144
-
The
square root of 21680064 is 4656.1855633125 -
The
cube root of 21680064 is 278.8390021917
Scales and comparisons
How big is 21680064?- 21,680,064 seconds is equal to 35 weeks, 5 days, 22 hours, 14 minutes, 24 seconds.
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To count from 1 to 21,680,064 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 21680064 cubic inches would be around 23.2 feet tall.
Recreational maths with 21680064
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Keywords: Divisors of 21680064, math, Factors of 21680064, curriculum, school, college, exams, university, Prime factorization of 21680064, STEM, science, technology, engineering, physics, economics, calculator, twenty-one million, six hundred eighty thousand and sixty-four.