138391728765
138,391,728,765 is an odd composite number composed of seven prime numbers multiplied together.
138391728765 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138391728765:
3 × 5 × 31 × 61 × 79 × 151 × 409
See below for interesting mathematical facts about the number 138391728765 from the Numbermatics database.
Names of 138391728765
- Cardinal: 138391728765 can be written as One hundred thirty-eight billion, three hundred ninety-one million, seven hundred twenty-eight thousand, seven hundred sixty-five.
Scientific notation
- Scientific notation: 1.38391728765 × 1011
Factors of 138391728765
Divisors of 138391728765
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 5 15 31 61 79 93 151 155 183 237 305 395 409 453 465 755 915 1185 1227 1891 2045 2265 2449 4681 4819 5673 6135 7347 9211 9455 11929 12245 12679 14043 14457 23405 24095 24949 27633 28365 32311 35787 36735 38037 46055 59645 61759 63395 70215 72285 74847 96933 124745 138165 149389 161555 178935 185277 190185 285541 308795 369799 374235 448167 484665 727669 746945 773419 856623 926385 1001641 1109397 1427705 1848995 1914529 1970971 2183007 2240835 2320257 3004923 3638345 3767299 3867095 4283115 4878961 5008205 5546985 5743587 5912913 9572645 9854855 10915035 11301897 11601285 14636883 15024615 18836495 22557739 24394805 28717935 29564565 56509485 61100101 67673217 73184415 112788695 116786269 151247791 183300303 297616621 305500505 338366085 350358807 453743373 583931345 756238955 892849863 916501515 1488083105 1751794035 2268716865 4464249315 9226115251 27678345753 46130576255 138391728765
- Sum of all divisors σ(n): 237394329600
- Sum of proper divisors (its aliquot sum) s(n): 99002600835
- 138391728765 is a deficient number, because the sum of its proper divisors (99002600835) is less than itself. Its deficiency is 39389127930
Bases of 138391728765
- Binary: 100000001110001100101000110010011111012
- Hexadecimal: 0x2038CA327D
- Base-36: 1RKQV1BX
Squares and roots of 138391728765
- 138391728765 squared (1383917287652) is 19152270590565328425225
- 138391728765 cubed (1383917287653) is 2650515836803403299436882784097125
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The
square root of 138391728765 is 372010.3879799595 -
The
cube root of 138391728765 is 5172.5342872821
Scales and comparisons
How big is 138391728765?- 138,391,728,765 seconds is equal to 4,400 years, 22 weeks, 2 days, 2 hours, 52 minutes, 45 seconds.
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To count from 1 to 138,391,728,765 would take you about eight thousand, eight hundred 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 138391728765 cubic inches would be around 431 feet tall.
Recreational maths with 138391728765
- 138391728765 backwards is 567827193831
- The number of decimal digits it has is: 12
- The sum of 138391728765's digits is 60
- More coming soon!
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The information we have on file for 138391728765 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!
Keywords: Divisors of 138391728765, math, Factors of 138391728765, curriculum, school, college, exams, university, Prime factorization of 138391728765, STEM, science, technology, engineering, physics, economics, calculator, one hundred thirty-eight billion, three hundred ninety-one million, seven hundred twenty-eight thousand, seven hundred sixty-five.