138872509720
138,872,509,720 is an even composite number composed of seven prime numbers multiplied together.
138872509720 is an even composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 138872509720:
23 × 5 × 7 × 17 × 61 × 257 × 1861
(2 × 2 × 2 × 5 × 7 × 17 × 61 × 257 × 1861)See below for interesting mathematical facts about the number 138872509720 from the Numbermatics database.
Names of 138872509720
- Cardinal: 138872509720 can be written as One hundred thirty-eight billion, eight hundred seventy-two million, five hundred nine thousand, seven hundred twenty.
Scientific notation
- Scientific notation: 1.3887250972 × 1011
Factors of 138872509720
Divisors of 138872509720
- Number of divisors d(n): 256
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Complete list of divisors:
1 2 4 5 7 8 10 14 17 20 28 34 35 40 56 61 68 70 85 119 122 136 140 170 238 244 257 280 305 340 427 476 488 514 595 610 680 854 952 1028 1037 1190 1220 1285 1708 1799 1861 2056 2074 2135 2380 2440 2570 3416 3598 3722 4148 4270 4369 4760 5140 5185 7196 7259 7444 8296 8540 8738 8995 9305 10280 10370 13027 14392 14518 14888 15677 17080 17476 17990 18610 20740 21845 26054 29036 30583 31354 31637 34952 35980 36295 37220 41480 43690 52108 58072 61166 62708 63274 65135 71960 72590 74440 78385 87380 104216 109739 113521 122332 125416 126548 130270 145180 152915 156770 158185 174760 219478 221459 227042 244664 253096 260540 266509 290360 305830 313540 316370 438956 442918 454084 478277 521080 533018 548695 567605 611660 627080 632740 794647 877912 885836 908168 956554 1066036 1097390 1107295 1135210 1223320 1265480 1332545 1589294 1771672 1865563 1913108 1929857 2132072 2194780 2214590 2270420 2391385 2665090 3178588 3347939 3731126 3826216 3859714 3973235 4389560 4429180 4540840 4782770 5330180 6357176 6695878 7462252 7719428 7946470 8130709 8858360 9327815 9565540 9649285 10660360 13391756 13508999 14924504 15438856 15892940 16261418 16739695 18655630 19131080 19298570 26783512 27017998 29174897 31785880 32522836 33479390 37311260 38597140 40653545 54035996 56914963 58349794 65045672 66958780 67544995 74622520 77194280 81307090 108071992 113829926 116699588 133917560 135089990 145874485 162614180 204224279 227659852 233399176 270179980 284574815 291748970 325228360 408448558 455319704 495973249 540359960 569149630 583497940 816897116 991946498 1021121395 1138299260 1166995880 1633794232 1983892996 2042242790 2276598520 2479866245 3471812743 3967785992 4084485580 4959732490 6943625486 8168971160 9919464980 13887250972 17359063715 19838929960 27774501944 34718127430 69436254860 138872509720
- Sum of all divisors σ(n): 386007793920
- Sum of proper divisors (its aliquot sum) s(n): 247135284200
- 138872509720 is an abundant number, because the sum of its proper divisors (247135284200) is greater than itself. Its abundance is 108262774480
Bases of 138872509720
- Binary: 100000010101010111001001010101000110002
- Hexadecimal: 0x2055725518
- Base-36: 1RSP3UAG
Squares and roots of 138872509720
- 138872509720 squared (1388725097202) is 19285573955931494478400
- 138872509720 cubed (1388725097203) is 2678236056650875318605730330048000
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The
square root of 138872509720 is 372656.0206410197 -
The
cube root of 138872509720 is 5178.5172597091
Scales and comparisons
How big is 138872509720?- 138,872,509,720 seconds is equal to 4,415 years, 37 weeks, 1 day, 17 hours, 8 minutes, 40 seconds.
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To count from 1 to 138,872,509,720 would take you about eight thousand, eight hundred thirty-one 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 138872509720 cubic inches would be around 431.5 feet tall.
Recreational maths with 138872509720
- 138872509720 backwards is 027905278831
- The number of decimal digits it has is: 12
- The sum of 138872509720's digits is 52
- More coming soon!
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