138907981220
138,907,981,220 is an even composite number composed of six prime numbers multiplied together.
138907981220 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138907981220:
22 × 5 × 19 × 31 × 612 × 3169
(2 × 2 × 5 × 19 × 31 × 61 × 61 × 3169)See below for interesting mathematical facts about the number 138907981220 from the Numbermatics database.
Names of 138907981220
- Cardinal: 138907981220 can be written as One hundred thirty-eight billion, nine hundred seven million, nine hundred eighty-one thousand, two hundred twenty.
Scientific notation
- Scientific notation: 1.3890798122 × 1011
Factors of 138907981220
Divisors of 138907981220
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 4 5 10 19 20 31 38 61 62 76 95 122 124 155 190 244 305 310 380 589 610 620 1159 1178 1220 1891 2318 2356 2945 3169 3721 3782 4636 5795 5890 6338 7442 7564 9455 11590 11780 12676 14884 15845 18605 18910 23180 31690 35929 37210 37820 60211 63380 70699 71858 74420 98239 115351 120422 141398 143716 179645 193309 196478 230702 240844 282796 301055 353495 359290 386618 392956 461404 491195 576755 602110 706990 718580 773236 966545 982390 1153510 1204220 1413980 1866541 1933090 1964780 2191669 2307020 3672871 3733082 3866180 4383338 5992579 7345742 7466164 8766676 9332705 10958345 11791849 11985158 14691484 18364355 18665410 21916690 23583698 23970316 29962895 36728710 37330820 43833380 47167396 58959245 59925790 73457420 113859001 117918490 119851580 224045131 227718002 235836980 365547319 448090262 455436004 569295005 731094638 896180524 1120225655 1138590010 1462189276 1827736595 2240451310 2277180020 3655473190 4480902620 6945399061 7310946380 13890798122 27781596244 34726995305 69453990610 138907981220
- Sum of all divisors σ(n): 322347916800
- Sum of proper divisors (its aliquot sum) s(n): 183439935580
- 138907981220 is an abundant number, because the sum of its proper divisors (183439935580) is greater than itself. Its abundance is 44531954360
Bases of 138907981220
- Binary: 100000010101111000111110010101101001002
- Hexadecimal: 0x20578F95A4
- Base-36: 1RTA849W
Squares and roots of 138907981220
- 138907981220 squared (1389079812202) is 19295427246615872688400
- 138907981220 cubed (1389079812203) is 2680288845604793951954178111848000
-
The
square root of 138907981220 is 372703.6104198617 -
The
cube root of 138907981220 is 5178.9581296313
Scales and comparisons
How big is 138907981220?- 138,907,981,220 seconds is equal to 4,416 years, 43 weeks, 6 days, 6 hours, 20 minutes, 20 seconds.
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To count from 1 to 138,907,981,220 would take you about eight thousand, eight hundred thirty-three 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 138907981220 cubic inches would be around 431.6 feet tall.
Recreational maths with 138907981220
- 138907981220 backwards is 022189709831
- The number of decimal digits it has is: 12
- The sum of 138907981220's digits is 50
- More coming soon!
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