138508740
138,508,740 is an even composite number composed of six prime numbers multiplied together.
138508740 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 138508740:
22 × 32 × 5 × 73 × 83 × 127
(2 × 2 × 3 × 3 × 5 × 73 × 83 × 127)See below for interesting mathematical facts about the number 138508740 from the Numbermatics database.
Names of 138508740
- Cardinal: 138508740 can be written as One hundred thirty-eight million, five hundred eight thousand, seven hundred forty.
Scientific notation
- Scientific notation: 1.3850874 × 108
Factors of 138508740
Divisors of 138508740
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 73 83 90 127 146 166 180 219 249 254 292 332 365 381 415 438 498 508 635 657 730 747 762 830 876 996 1095 1143 1245 1270 1314 1460 1494 1524 1660 1905 2190 2286 2490 2540 2628 2988 3285 3735 3810 4380 4572 4980 5715 6059 6570 7470 7620 9271 10541 11430 12118 13140 14940 18177 18542 21082 22860 24236 27813 30295 31623 36354 37084 42164 46355 52705 54531 55626 60590 63246 72708 83439 90885 92710 94869 105410 109062 111252 121180 126492 139065 158115 166878 181770 185420 189738 210820 218124 272655 278130 316230 333756 363540 379476 417195 474345 545310 556260 632460 769493 834390 948690 1090620 1538986 1668780 1897380 2308479 3077972 3847465 4616958 6925437 7694930 9233916 11542395 13850874 15389860 23084790 27701748 34627185 46169580 69254370 138508740
- Sum of all divisors σ(n): 434423808
- Sum of proper divisors (its aliquot sum) s(n): 295915068
- 138508740 is an abundant number, because the sum of its proper divisors (295915068) is greater than itself. Its abundance is 157406328
Bases of 138508740
- Binary: 10000100000101111001110001002
- Hexadecimal: 0x84179C4
- Base-36: 2AGQ10
Squares and roots of 138508740
- 138508740 squared (1385087402) is 19184671056387600
- 138508740 cubed (1385087403) is 2657244615334715427624000
-
The
square root of 138508740 is 11768.9736171001 -
The
cube root of 138508740 is 517.3991682007
Scales and comparisons
How big is 138508740?- 138,508,740 seconds is equal to 4 years, 21 weeks, 2 hours, 39 minutes.
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To count from 1 to 138,508,740 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 138508740 cubic inches would be around 43.1 feet tall.
Recreational maths with 138508740
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