138155220
138,155,220 is an even composite number composed of six prime numbers multiplied together.
138155220 is an even composite number. It is composed of six distinct prime numbers multiplied together. It has a total of two hundred eighty-eight divisors.
Prime factorization of 138155220:
22 × 35 × 5 × 7 × 31 × 131
(2 × 2 × 3 × 3 × 3 × 3 × 3 × 5 × 7 × 31 × 131)See below for interesting mathematical facts about the number 138155220 from the Numbermatics database.
Names of 138155220
- Cardinal: 138155220 can be written as One hundred thirty-eight million, one hundred fifty-five thousand, two hundred twenty.
Scientific notation
- Scientific notation: 1.3815522 × 108
Factors of 138155220
Divisors of 138155220
- Number of divisors d(n): 288
-
Complete list of divisors:
1 2 3 4 5 6 7 9 10 12 14 15 18 20 21 27 28 30 31 35 36 42 45 54 60 62 63 70 81 84 90 93 105 108 124 126 131 135 140 155 162 180 186 189 210 217 243 252 262 270 279 310 315 324 372 378 393 405 420 434 465 486 524 540 558 567 620 630 651 655 756 786 810 837 868 917 930 945 972 1085 1116 1134 1179 1215 1260 1302 1310 1395 1572 1620 1674 1701 1834 1860 1890 1953 1965 2170 2268 2358 2430 2511 2604 2620 2751 2790 2835 3255 3348 3402 3537 3668 3780 3906 3930 4061 4185 4340 4585 4716 4860 5022 5502 5580 5670 5859 5895 6510 6804 7074 7533 7812 7860 8122 8253 8370 8505 9170 9765 10044 10611 11004 11340 11718 11790 12183 12555 13020 13755 14148 15066 16244 16506 16740 17010 17577 17685 18340 19530 20305 21222 23436 23580 24366 24759 25110 27510 28427 29295 30132 31833 33012 34020 35154 35370 36549 37665 39060 40610 41265 42444 48732 49518 50220 52731 53055 55020 56854 58590 60915 63666 70308 70740 73098 74277 75330 81220 82530 85281 87885 99036 105462 106110 109647 113708 117180 121830 123795 127332 142135 146196 148554 150660 159165 165060 170562 175770 182745 210924 212220 219294 222831 243660 247590 255843 263655 284270 297108 318330 328941 341124 351540 365490 371385 426405 438588 445662 495180 511686 527310 548235 568540 636660 657882 730980 742770 767529 852810 891324 986823 1023372 1054620 1096470 1114155 1279215 1315764 1485540 1535058 1644705 1705620 1973646 2192940 2228310 2302587 2558430 3070116 3289410 3837645 3947292 4456620 4605174 4934115 5116860 6578820 6907761 7675290 9210348 9868230 11512935 13815522 15350580 19736460 23025870 27631044 34538805 46051740 69077610 138155220
- Sum of all divisors σ(n): 516612096
- Sum of proper divisors (its aliquot sum) s(n): 378456876
- 138155220 is an abundant number, because the sum of its proper divisors (378456876) is greater than itself. Its abundance is 240301656
Bases of 138155220
- Binary: 10000011110000010100110101002
- Hexadecimal: 0x83C14D4
- Base-36: 2A9590
Squares and roots of 138155220
- 138155220 squared (1381552202) is 19086864813248400
- 138155220 cubed (1381552203) is 2636950007384591616648000
-
The
square root of 138155220 is 11753.9448697023 -
The
cube root of 138155220 is 516.9586020399
Scales and comparisons
How big is 138155220?- 138,155,220 seconds is equal to 4 years, 20 weeks, 3 days, 27 minutes.
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To count from 1 to 138,155,220 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 138155220 cubic inches would be around 43.1 feet tall.
Recreational maths with 138155220
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