66820221
66,820,221 is an odd composite number composed of five prime numbers multiplied together.
66820221 is an odd composite number. It is composed of five distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 66820221:
34 × 13 × 23 × 31 × 89
(3 × 3 × 3 × 3 × 13 × 23 × 31 × 89)See below for interesting mathematical facts about the number 66820221 from the Numbermatics database.
Names of 66820221
- Cardinal: 66820221 can be written as Sixty-six million, eight hundred twenty thousand, two hundred twenty-one.
Scientific notation
- Scientific notation: 6.6820221 × 107
Factors of 66820221
Divisors of 66820221
- Number of divisors d(n): 80
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Complete list of divisors:
1 3 9 13 23 27 31 39 69 81 89 93 117 207 267 279 299 351 403 621 713 801 837 897 1053 1157 1209 1863 2047 2139 2403 2511 2691 2759 3471 3627 6141 6417 7209 8073 8277 9269 10413 10881 18423 19251 24219 24831 26611 27807 31239 32643 35867 55269 57753 63457 74493 79833 83421 93717 107601 165807 190371 223479 239499 250263 322803 571113 718497 750789 824941 968409 1713339 2155491 2474823 2905227 5140017 7424469 22273407 66820221
- Sum of all divisors σ(n): 117089280
- Sum of proper divisors (its aliquot sum) s(n): 50269059
- 66820221 is a deficient number, because the sum of its proper divisors (50269059) is less than itself. Its deficiency is 16551162
Bases of 66820221
- Binary: 111111101110011000011111012
- Hexadecimal: 0x3FB987D
- Base-36: 13S6T9
Squares and roots of 66820221
- 66820221 squared (668202212) is 4464941934488841
- 66820221 cubed (668202213) is 298348406814711877653861
-
The
square root of 66820221 is 8174.3636449577 -
The
cube root of 66820221 is 405.7912104815
Scales and comparisons
How big is 66820221?- 66,820,221 seconds is equal to 2 years, 6 weeks, 3 days, 9 hours, 10 minutes, 21 seconds.
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To count from 1 to 66,820,221 would take you about three 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 66820221 cubic inches would be around 33.8 feet tall.
Recreational maths with 66820221
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The information we have on file for 66820221 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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