642120121875
642,120,121,875 is an odd composite number composed of five prime numbers multiplied together.
642120121875 is an odd 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 642120121875:
3 × 55 × 17 × 61 × 2572
(3 × 5 × 5 × 5 × 5 × 5 × 17 × 61 × 257 × 257)See below for interesting mathematical facts about the number 642120121875 from the Numbermatics database.
Names of 642120121875
- Cardinal: 642120121875 can be written as Six hundred forty-two billion, one hundred twenty million, one hundred twenty-one thousand, eight hundred seventy-five.
Scientific notation
- Scientific notation: 6.42120121875 × 1011
Factors of 642120121875
Divisors of 642120121875
- Number of divisors d(n): 144
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Complete list of divisors:
1 3 5 15 17 25 51 61 75 85 125 183 255 257 305 375 425 625 771 915 1037 1275 1285 1525 1875 2125 3111 3125 3855 4369 4575 5185 6375 6425 7625 9375 10625 13107 15555 15677 19275 21845 22875 25925 31875 32125 38125 47031 53125 65535 66049 77775 78385 96375 109225 114375 129625 159375 160625 190625 198147 235155 266509 327675 330245 388875 391925 481875 546125 571875 648125 799527 803125 990735 1122833 1175775 1332545 1638375 1651225 1944375 1959625 2409375 2730625 3240625 3368499 3997635 4028989 4953675 5614165 5878875 6662725 8191875 8256125 9721875 9798125 12086967 13653125 16842495 19988175 20144945 24768375 28070825 29394375 33313625 40959375 41280625 48990625 60434835 68492813 84212475 99940875 100724725 123841875 140354125 146971875 166568125 205478439 206403125 302174175 342464065 421062375 499704375 503623625 619209375 701770625 832840625 1027392195 1510870875 1712320325 2105311875 2498521875 2518118125 3508853125 5136960975 7554354375 8561601625 10526559375 12590590625 25684804875 37771771875 42808008125 128424024375 214040040625 642120121875
- Sum of all divisors σ(n): 1156154313888
- Sum of proper divisors (its aliquot sum) s(n): 514034192013
- 642120121875 is a deficient number, because the sum of its proper divisors (514034192013) is less than itself. Its deficiency is 128085929862
Bases of 642120121875
- Binary: 10010101100000010101011101111110000100112
- Hexadecimal: 0x9581577E13
- Base-36: 86ZHQP03
Squares and roots of 642120121875
- 642120121875 squared (6421201218752) is 412318250916764853515625
- 642120121875 cubed (6421201218753) is 264757845529959878220169647216796875
-
The
square root of 642120121875 is 801323.9805939917 -
The
cube root of 642120121875 is 8627.2442385113
Scales and comparisons
How big is 642120121875?- 642,120,121,875 seconds is equal to 20,417 years, 22 weeks, 3 days, 20 hours, 31 minutes, 15 seconds.
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To count from 1 to 642,120,121,875 would take you about forty thousand, eight hundred thirty-four 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 642120121875 cubic inches would be around 718.9 feet tall.
Recreational maths with 642120121875
- 642120121875 backwards is 578121021246
- The number of decimal digits it has is: 12
- The sum of 642120121875's digits is 39
- More coming soon!
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