2138728440
2,138,728,440 is an even composite number composed of six prime numbers multiplied together.
What does the number 2138728440 look like?
This visualization shows the relationship between its 6 prime factors (large circles) and 128 divisors.
2138728440 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 2138728440:
23 × 3 × 5 × 31 × 67 × 8581
(2 × 2 × 2 × 3 × 5 × 31 × 67 × 8581)See below for interesting mathematical facts about the number 2138728440 from the Numbermatics database.
Names of 2138728440
- Cardinal: 2138728440 can be written as Two billion, one hundred thirty-eight million, seven hundred twenty-eight thousand, four hundred forty.
Scientific notation
- Scientific notation: 2.13872844 × 109
Factors of 2138728440
Divisors of 2138728440
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 15 20 24 30 31 40 60 62 67 93 120 124 134 155 186 201 248 268 310 335 372 402 465 536 620 670 744 804 930 1005 1240 1340 1608 1860 2010 2077 2680 3720 4020 4154 6231 8040 8308 8581 10385 12462 16616 17162 20770 24924 25743 31155 34324 41540 42905 49848 51486 62310 68648 83080 85810 102972 124620 128715 171620 205944 249240 257430 266011 343240 514860 532022 574927 798033 1029720 1064044 1149854 1330055 1596066 1724781 2128088 2299708 2660110 2874635 3192132 3449562 3990165 4599416 5320220 5749270 6384264 6899124 7980330 8623905 10640440 11498540 13798248 15960660 17247810 17822737 22997080 31921320 34495620 35645474 53468211 68991240 71290948 89113685 106936422 142581896 178227370 213872844 267341055 356454740 427745688 534682110 712909480 1069364220 2138728440
- Sum of all divisors σ(n): 6722795520
- Sum of proper divisors (its aliquot sum) s(n): 4584067080
- 2138728440 is an abundant number, because the sum of its proper divisors (4584067080) is greater than itself. Its abundance is 2445338640
Bases of 2138728440
- Binary: 11111110111101001100111111110002
- Hexadecimal: 0x7F7A67F8
- Base-36: ZDCDFC
Squares and roots of 2138728440
- 2138728440 squared (21387284402) is 4574159340064833600
- 2138728440 cubed (21387284403) is 9782884669688291064187584000
-
The
square root of 2138728440 is 46246.3883995281 -
The
cube root of 2138728440 is 1288.4034572517
Scales and comparisons
How big is 2138728440?- 2,138,728,440 seconds is equal to 68 years, 1 day, 19 hours, 14 minutes.
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To count from 1 to 2,138,728,440 would take you about one hundred thirty-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 2138728440 cubic inches would be around 107.4 feet tall.
Recreational maths with 2138728440
- 2138728440 backwards is 0448278312
- The number of decimal digits it has is: 10
- The sum of 2138728440's digits is 39
- More coming soon!
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The information we have on file for 2138728440 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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