138447420
138,447,420 is an even composite number composed of five prime numbers multiplied together.
138447420 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 138447420:
22 × 3 × 5 × 732 × 433
(2 × 2 × 3 × 5 × 73 × 73 × 433)See below for interesting mathematical facts about the number 138447420 from the Numbermatics database.
Names of 138447420
- Cardinal: 138447420 can be written as One hundred thirty-eight million, four hundred forty-seven thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.3844742 × 108
Factors of 138447420
Divisors of 138447420
- Number of divisors d(n): 72
-
Complete list of divisors:
1 2 3 4 5 6 10 12 15 20 30 60 73 146 219 292 365 433 438 730 866 876 1095 1299 1460 1732 2165 2190 2598 4330 4380 5196 5329 6495 8660 10658 12990 15987 21316 25980 26645 31609 31974 53290 63218 63948 79935 94827 106580 126436 158045 159870 189654 316090 319740 379308 474135 632180 948270 1896540 2307457 4614914 6922371 9229828 11537285 13844742 23074570 27689484 34611855 46149140 69223710 138447420
- Sum of all divisors σ(n): 393943536
- Sum of proper divisors (its aliquot sum) s(n): 255496116
- 138447420 is an abundant number, because the sum of its proper divisors (255496116) is greater than itself. Its abundance is 117048696
Bases of 138447420
- Binary: 10000100000010001010001111002
- Hexadecimal: 0x8408A3C
- Base-36: 2AFEPO
Squares and roots of 138447420
- 138447420 squared (1384474202) is 19167688104656400
- 138447420 cubed (1384474203) is 2653716965454368566488000
-
The
square root of 138447420 is 11766.3681737399 -
The
cube root of 138447420 is 517.3228033441
Scales and comparisons
How big is 138447420?- 138,447,420 seconds is equal to 4 years, 20 weeks, 6 days, 9 hours, 37 minutes.
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To count from 1 to 138,447,420 would take you about six 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 138447420 cubic inches would be around 43.1 feet tall.
Recreational maths with 138447420
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The information we have on file for 138447420 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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