20646990
20,646,990 is an even composite number composed of six prime numbers multiplied together.
20646990 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of ninety-six divisors.
Prime factorization of 20646990:
2 × 32 × 5 × 7 × 13 × 2521
(2 × 3 × 3 × 5 × 7 × 13 × 2521)See below for interesting mathematical facts about the number 20646990 from the Numbermatics database.
Names of 20646990
- Cardinal: 20646990 can be written as Twenty million, six hundred forty-six thousand, nine hundred ninety.
Scientific notation
- Scientific notation: 2.064699 × 107
Factors of 20646990
Divisors of 20646990
- Number of divisors d(n): 96
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Complete list of divisors:
1 2 3 5 6 7 9 10 13 14 15 18 21 26 30 35 39 42 45 63 65 70 78 90 91 105 117 126 130 182 195 210 234 273 315 390 455 546 585 630 819 910 1170 1365 1638 2521 2730 4095 5042 7563 8190 12605 15126 17647 22689 25210 32773 35294 37815 45378 52941 65546 75630 88235 98319 105882 113445 158823 163865 176470 196638 226890 229411 264705 294957 317646 327730 458822 491595 529410 589914 688233 794115 983190 1147055 1376466 1474785 1588230 2064699 2294110 2949570 3441165 4129398 6882330 10323495 20646990
- Sum of all divisors σ(n): 66096576
- Sum of proper divisors (its aliquot sum) s(n): 45449586
- 20646990 is an abundant number, because the sum of its proper divisors (45449586) is greater than itself. Its abundance is 24802596
Bases of 20646990
- Binary: 10011101100001100010011102
- Hexadecimal: 0x13B0C4E
- Base-36: CAJBI
Squares and roots of 20646990
- 20646990 squared (206469902) is 426298196060100
- 20646990 cubed (206469903) is 8801774591070924099000
-
The
square root of 20646990 is 4543.8959054979 -
The
cube root of 20646990 is 274.3377563547
Scales and comparisons
How big is 20646990?- 20,646,990 seconds is equal to 34 weeks, 23 hours, 16 minutes, 30 seconds.
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To count from 1 to 20,646,990 would take you about fifty-one weeks!
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 20646990 cubic inches would be around 22.9 feet tall.
Recreational maths with 20646990
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The information we have on file for 20646990 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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