138706750
138,706,750 is an even composite number composed of five prime numbers multiplied together.
138706750 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138706750:
2 × 53 × 72 × 132 × 67
(2 × 5 × 5 × 5 × 7 × 7 × 13 × 13 × 67)See below for interesting mathematical facts about the number 138706750 from the Numbermatics database.
Names of 138706750
- Cardinal: 138706750 can be written as One hundred thirty-eight million, seven hundred six thousand, seven hundred fifty.
Scientific notation
- Scientific notation: 1.3870675 × 108
Factors of 138706750
Divisors of 138706750
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 5 7 10 13 14 25 26 35 49 50 65 67 70 91 98 125 130 134 169 175 182 245 250 325 335 338 350 455 469 490 637 650 670 845 871 875 910 938 1183 1225 1274 1625 1675 1690 1742 1750 2275 2345 2366 2450 3185 3250 3283 3350 4225 4355 4550 4690 5915 6097 6125 6370 6566 8281 8375 8450 8710 11323 11375 11725 11830 12194 12250 15925 16415 16562 16750 21125 21775 22646 22750 23450 29575 30485 31850 32830 41405 42250 42679 43550 56615 58625 59150 60970 79261 79625 82075 82810 85358 108875 113230 117250 147875 152425 158522 159250 164150 207025 213395 217750 283075 295750 304850 396305 410375 414050 426790 554827 566150 762125 792610 820750 1035125 1066975 1109654 1415375 1524250 1981525 2070250 2133950 2774135 2830750 3963050 5334875 5548270 9907625 10669750 13870675 19815250 27741350 69353375 138706750
- Sum of all divisors σ(n): 331956144
- Sum of proper divisors (its aliquot sum) s(n): 193249394
- 138706750 is an abundant number, because the sum of its proper divisors (193249394) is greater than itself. Its abundance is 54542644
Bases of 138706750
- Binary: 10000100010001111111001111102
- Hexadecimal: 0x8447F3E
- Base-36: 2AKYTA
Squares and roots of 138706750
- 138706750 squared (1387067502) is 19239562495562500
- 138706750 cubed (1387067503) is 2668657185181363796875000
-
The
square root of 138706750 is 11777.3829860457 -
The
cube root of 138706750 is 517.6456061449
Scales and comparisons
How big is 138706750?- 138,706,750 seconds is equal to 4 years, 21 weeks, 2 days, 9 hours, 39 minutes, 10 seconds.
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To count from 1 to 138,706,750 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 138706750 cubic inches would be around 43.1 feet tall.
Recreational maths with 138706750
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