72742890
72,742,890 is an even composite number composed of six prime numbers multiplied together.
What does the number 72742890 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 64 divisors.
72742890 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of sixty-four divisors.
Prime factorization of 72742890:
2 × 3 × 5 × 11 × 137 × 1609
See below for interesting mathematical facts about the number 72742890 from the Numbermatics database.
Names of 72742890
- Cardinal: 72742890 can be written as Seventy-two million, seven hundred forty-two thousand, eight hundred ninety.
Scientific notation
- Scientific notation: 7.274289 × 107
Factors of 72742890
Divisors of 72742890
- Number of divisors d(n): 64
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Complete list of divisors:
1 2 3 5 6 10 11 15 22 30 33 55 66 110 137 165 274 330 411 685 822 1370 1507 1609 2055 3014 3218 4110 4521 4827 7535 8045 9042 9654 15070 16090 17699 22605 24135 35398 45210 48270 53097 88495 106194 176990 220433 265485 440866 530970 661299 1102165 1322598 2204330 2424763 3306495 4849526 6612990 7274289 12123815 14548578 24247630 36371445 72742890
- Sum of all divisors σ(n): 191963520
- Sum of proper divisors (its aliquot sum) s(n): 119220630
- 72742890 is an abundant number, because the sum of its proper divisors (119220630) is greater than itself. Its abundance is 46477740
Bases of 72742890
- Binary: 1000101010111110111111010102
- Hexadecimal: 0x455F7EA
- Base-36: 17B4RU
Squares and roots of 72742890
- 72742890 squared (727428902) is 5291528045552100
- 72742890 cubed (727428903) is 384921042549511399569000
-
The
square root of 72742890 is 8528.9442488505 -
The
cube root of 72742890 is 417.4426804069
Scales and comparisons
How big is 72742890?- 72,742,890 seconds is equal to 2 years, 16 weeks, 1 day, 22 hours, 21 minutes, 30 seconds.
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To count from 1 to 72,742,890 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 72742890 cubic inches would be around 34.8 feet tall.
Recreational maths with 72742890
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The information we have on file for 72742890 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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