138891412920
138,891,412,920 is an even composite number composed of five prime numbers multiplied together.
138891412920 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred forty-four divisors.
Prime factorization of 138891412920:
23 × 3 × 5 × 132 × 26172
(2 × 2 × 2 × 3 × 5 × 13 × 13 × 2617 × 2617)See below for interesting mathematical facts about the number 138891412920 from the Numbermatics database.
Names of 138891412920
- Cardinal: 138891412920 can be written as One hundred thirty-eight billion, eight hundred ninety-one million, four hundred twelve thousand, nine hundred twenty.
Scientific notation
- Scientific notation: 1.3889141292 × 1011
Factors of 138891412920
Divisors of 138891412920
- Number of divisors d(n): 144
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Complete list of divisors:
1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 260 312 338 390 507 520 676 780 845 1014 1352 1560 1690 2028 2535 2617 3380 4056 5070 5234 6760 7851 10140 10468 13085 15702 20280 20936 26170 31404 34021 39255 52340 62808 68042 78510 102063 104680 136084 157020 170105 204126 272168 314040 340210 408252 442273 510315 680420 816504 884546 1020630 1326819 1360840 1769092 2041260 2211365 2653638 3538184 4082520 4422730 5307276 6634095 6848689 8845460 10614552 13268190 13697378 17690920 20546067 26536380 27394756 34243445 41092134 53072760 54789512 68486890 82184268 89032957 102730335 136973780 164368536 178065914 205460670 267098871 273947560 356131828 410921340 445164785 534197742 712263656 821842680 890329570 1068395484 1157428441 1335494355 1780659140 2136790968 2314856882 2670988710 3472285323 3561318280 4629713764 5341977420 5787142205 6944570646 9259427528 10683954840 11574284410 13889141292 17361426615 23148568820 27778282584 34722853230 46297137640 69445706460 138891412920
- Sum of all divisors σ(n): 451364105160
- Sum of proper divisors (its aliquot sum) s(n): 312472692240
- 138891412920 is an abundant number, because the sum of its proper divisors (312472692240) is greater than itself. Its abundance is 173581279320
Bases of 138891412920
- Binary: 100000010101101001001011000101101110002
- Hexadecimal: 0x205692C5B8
- Base-36: 1RT0D03C
Squares and roots of 138891412920
- 138891412920 squared (1388914129202) is 19290824582913942926400
- 138891412920 cubed (1388914129203) is 2679329882712787223815935569088000
-
The
square root of 138891412920 is 372681.3825776651 -
The
cube root of 138891412920 is 5178.7522140723
Scales and comparisons
How big is 138891412920?- 138,891,412,920 seconds is equal to 4,416 years, 16 weeks, 3 days, 12 hours, 2 minutes.
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To count from 1 to 138,891,412,920 would take you about eight thousand, eight hundred thirty-two 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 138891412920 cubic inches would be around 431.6 feet tall.
Recreational maths with 138891412920
- 138891412920 backwards is 029214198831
- The number of decimal digits it has is: 12
- The sum of 138891412920's digits is 48
- More coming soon!
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