138779420
138,779,420 is an even composite number composed of five prime numbers multiplied together.
138779420 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 138779420:
22 × 5 × 132 × 19 × 2161
(2 × 2 × 5 × 13 × 13 × 19 × 2161)See below for interesting mathematical facts about the number 138779420 from the Numbermatics database.
Names of 138779420
- Cardinal: 138779420 can be written as One hundred thirty-eight million, seven hundred seventy-nine thousand, four hundred twenty.
Scientific notation
- Scientific notation: 1.3877942 × 108
Factors of 138779420
Divisors of 138779420
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 169 190 247 260 338 380 494 676 845 988 1235 1690 2161 2470 3211 3380 4322 4940 6422 8644 10805 12844 16055 21610 28093 32110 41059 43220 56186 64220 82118 112372 140465 164236 205295 280930 365209 410590 533767 561860 730418 821180 1067534 1460836 1826045 2135068 2668835 3652090 5337670 6938971 7304180 10675340 13877942 27755884 34694855 69389710 138779420
- Sum of all divisors σ(n): 332342640
- Sum of proper divisors (its aliquot sum) s(n): 193563220
- 138779420 is an abundant number, because the sum of its proper divisors (193563220) is greater than itself. Its abundance is 54783800
Bases of 138779420
- Binary: 10000100010110011011000111002
- Hexadecimal: 0x8459B1C
- Base-36: 2AMIVW
Squares and roots of 138779420
- 138779420 squared (1387794202) is 19259727415536400
- 138779420 cubed (1387794203) is 2672853800086240580888000
-
The
square root of 138779420 is 11780.4677326497 -
The
cube root of 138779420 is 517.7359904481
Scales and comparisons
How big is 138779420?- 138,779,420 seconds is equal to 4 years, 21 weeks, 3 days, 5 hours, 50 minutes, 20 seconds.
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To count from 1 to 138,779,420 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 138779420 cubic inches would be around 43.1 feet tall.
Recreational maths with 138779420
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The information we have on file for 138779420 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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