138368802891
138,368,802,891 is an odd composite number composed of seven prime numbers multiplied together.
138368802891 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 138368802891:
3 × 11 × 41 × 43 × 61 × 127 × 307
See below for interesting mathematical facts about the number 138368802891 from the Numbermatics database.
Names of 138368802891
- Cardinal: 138368802891 can be written as One hundred thirty-eight billion, three hundred sixty-eight million, eight hundred two thousand, eight hundred ninety-one.
Scientific notation
- Scientific notation: 1.38368802891 × 1011
Factors of 138368802891
Divisors of 138368802891
- Number of divisors d(n): 128
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Complete list of divisors:
1 3 11 33 41 43 61 123 127 129 183 307 381 451 473 671 921 1353 1397 1419 1763 2013 2501 2623 3377 4191 5207 5289 5461 7503 7747 7869 10131 12587 13201 15621 16383 18727 19393 23241 27511 28853 37761 38989 39603 56181 57277 58179 60071 82533 85217 86559 107543 116967 138457 145211 171831 180213 205997 223901 255651 317627 322629 333121 415371 428879 435633 541241 617991 671703 767807 805261 952881 999363 1182973 1286637 1598549 1623723 1676527 2303421 2378329 2415783 2462911 3493897 3548919 3664331 4795647 5029581 5953651 7134987 7388733 8445877 8857871 10481691 10992993 13657961 17584039 17860953 18441797 25337631 26161619 26573613 33015701 40973883 52752117 55325391 68737607 78484857 97511489 99047103 102268147 150237571 206212821 292534467 306804441 363172711 450712713 756113677 1072626379 1089518133 1124949617 2268341031 3217879137 3374848851 4192994027 12578982081 46122934297 138368802891
- Sum of all divisors σ(n): 216818122752
- Sum of proper divisors (its aliquot sum) s(n): 78449319861
- 138368802891 is a deficient number, because the sum of its proper divisors (78449319861) is less than itself. Its deficiency is 59919483030
Bases of 138368802891
- Binary: 100000001101110110110001100000010010112
- Hexadecimal: 0x20376C604B
- Base-36: 1RKD7NM3
Squares and roots of 138368802891
- 138368802891 squared (1383688028912) is 19145925613488409957881
- 138368802891 cubed (1383688028913) is 2649198807378526048375037701033971
-
The
square root of 138368802891 is 371979.5732174011 -
The
cube root of 138368802891 is 5172.2486454085
Scales and comparisons
How big is 138368802891?- 138,368,802,891 seconds is equal to 4,399 years, 36 weeks, 2 days, 18 hours, 34 minutes, 51 seconds.
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To count from 1 to 138,368,802,891 would take you about eight thousand, seven hundred ninety-nine 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 138368802891 cubic inches would be around 431 feet tall.
Recreational maths with 138368802891
- 138368802891 backwards is 198208863831
- The number of decimal digits it has is: 12
- The sum of 138368802891's digits is 57
- More coming soon!
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