138268612440
138,268,612,440 is an even composite number composed of five prime numbers multiplied together.
138268612440 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138268612440:
23 × 33 × 5 × 7 × 18289499
(2 × 2 × 2 × 3 × 3 × 3 × 5 × 7 × 18289499)See below for interesting mathematical facts about the number 138268612440 from the Numbermatics database.
Names of 138268612440
- Cardinal: 138268612440 can be written as One hundred thirty-eight billion, two hundred sixty-eight million, six hundred twelve thousand, four hundred forty.
Scientific notation
- Scientific notation: 1.3826861244 × 1011
Factors of 138268612440
Divisors of 138268612440
- Number of divisors d(n): 128
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Complete list of divisors:
1 2 3 4 5 6 7 8 9 10 12 14 15 18 20 21 24 27 28 30 35 36 40 42 45 54 56 60 63 70 72 84 90 105 108 120 126 135 140 168 180 189 210 216 252 270 280 315 360 378 420 504 540 630 756 840 945 1080 1260 1512 1890 2520 3780 7560 18289499 36578998 54868497 73157996 91447495 109736994 128026493 146315992 164605491 182894990 219473988 256052986 274342485 329210982 365789980 384079479 438947976 493816473 512105972 548684970 640132465 658421964 731579960 768158958 823027455 987632946 1024211944 1097369940 1152238437 1280264930 1316843928 1536317916 1646054910 1920397395 1975265892 2194739880 2304476874 2469082365 2560529860 3072635832 3292109820 3456715311 3840794790 3950531784 4608953748 4938164730 5121059720 5761192185 6584219640 6913430622 7681589580 9217907496 9876329460 11522384370 13826861244 15363179160 17283576555 19752658920 23044768740 27653722488 34567153110 46089537480 69134306220 138268612440
- Sum of all divisors σ(n): 526737600000
- Sum of proper divisors (its aliquot sum) s(n): 388468987560
- 138268612440 is an abundant number, because the sum of its proper divisors (388468987560) is greater than itself. Its abundance is 250200375120
Bases of 138268612440
- Binary: 100000001100010111001110010111010110002
- Hexadecimal: 0x2031739758
- Base-36: 1RIPK860
Squares and roots of 138268612440
- 138268612440 squared (1382686124402) is 19118209186082922753600
- 138268612440 cubed (1382686124403) is 2643448256497347487919976014784000
-
The
square root of 138268612440 is 371844.8768505491 -
The
cube root of 138268612440 is 5170.9999654565
Scales and comparisons
How big is 138268612440?- 138,268,612,440 seconds is equal to 4,396 years, 26 weeks, 5 days, 3 hours, 54 minutes.
-
To count from 1 to 138,268,612,440 would take you about eight thousand, seven hundred ninety-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 138268612440 cubic inches would be around 430.9 feet tall.
Recreational maths with 138268612440
- 138268612440 backwards is 044216862831
- 138268612440 is a
Harshad number . - The number of decimal digits it has is: 12
- The sum of 138268612440's digits is 45
- More coming soon!
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