138839680
138,839,680 is an even composite number composed of five prime numbers multiplied together.
138839680 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138839680:
27 × 5 × 7 × 17 × 1823
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 7 × 17 × 1823)See below for interesting mathematical facts about the number 138839680 from the Numbermatics database.
Names of 138839680
- Cardinal: 138839680 can be written as One hundred thirty-eight million, eight hundred thirty-nine thousand, six hundred eighty.
Scientific notation
- Scientific notation: 1.3883968 × 108
Factors of 138839680
Divisors of 138839680
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 4 5 7 8 10 14 16 17 20 28 32 34 35 40 56 64 68 70 80 85 112 119 128 136 140 160 170 224 238 272 280 320 340 448 476 544 560 595 640 680 896 952 1088 1120 1190 1360 1823 1904 2176 2240 2380 2720 3646 3808 4480 4760 5440 7292 7616 9115 9520 10880 12761 14584 15232 18230 19040 25522 29168 30991 36460 38080 51044 58336 61982 63805 72920 76160 102088 116672 123964 127610 145840 154955 204176 216937 233344 247928 255220 291680 309910 408352 433874 495856 510440 583360 619820 816704 867748 991712 1020880 1084685 1166720 1239640 1633408 1735496 1983424 2041760 2169370 2479280 3470992 3966848 4083520 4338740 4958560 6941984 8167040 8677480 9917120 13883968 17354960 19834240 27767936 34709920 69419840 138839680
- Sum of all divisors σ(n): 401863680
- Sum of proper divisors (its aliquot sum) s(n): 263024000
- 138839680 is an abundant number, because the sum of its proper divisors (263024000) is greater than itself. Its abundance is 124184320
Bases of 138839680
- Binary: 10000100011010000110100000002
- Hexadecimal: 0x8468680
- Base-36: 2ANTDS
Squares and roots of 138839680
- 138839680 squared (1388396802) is 19276456742502400
- 138839680 cubed (1388396803) is 2676337085662875615232000
-
The
square root of 138839680 is 11783.0250784763 -
The
cube root of 138839680 is 517.8109157173
Scales and comparisons
How big is 138839680?- 138,839,680 seconds is equal to 4 years, 21 weeks, 3 days, 22 hours, 34 minutes, 40 seconds.
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To count from 1 to 138,839,680 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 138839680 cubic inches would be around 43.2 feet tall.
Recreational maths with 138839680
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The information we have on file for 138839680 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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