80721396021
80,721,396,021 is an odd composite number composed of four prime numbers multiplied together.
80721396021 is an odd composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 80721396021:
3 × 73 × 172 × 5212
(3 × 7 × 7 × 7 × 17 × 17 × 521 × 521)See below for interesting mathematical facts about the number 80721396021 from the Numbermatics database.
Names of 80721396021
- Cardinal: 80721396021 can be written as Eighty billion, seven hundred twenty-one million, three hundred ninety-six thousand and twenty-one.
Scientific notation
- Scientific notation: 8.0721396021 × 1010
Factors of 80721396021
Divisors of 80721396021
- Number of divisors d(n): 72
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Complete list of divisors:
1 3 7 17 21 49 51 119 147 289 343 357 521 833 867 1029 1563 2023 2499 3647 5831 6069 8857 10941 14161 17493 25529 26571 42483 61999 76587 99127 150569 178703 185997 271441 297381 433993 451707 536109 814323 1053983 1301979 1900087 3037951 3161949 4614497 5700261 7377881 9113853 13300609 13843491 22133643 32301479 39901827 51645167 78446449 93104263 96904437 154935501 226110353 235339347 279312789 549125143 678331059 1582772471 1647375429 3843876001 4748317413 11531628003 26907132007 80721396021
- Sum of all divisors σ(n): 133588225600
- Sum of proper divisors (its aliquot sum) s(n): 52866829579
- 80721396021 is a deficient number, because the sum of its proper divisors (52866829579) is less than itself. Its deficiency is 27854566442
Bases of 80721396021
- Binary: 10010110010110101111011000001001101012
- Hexadecimal: 0x12CB5EC135
- Base-36: 112ZFNSL
Squares and roots of 80721396021
- 80721396021 squared (807213960212) is 6515943775579114632441
- 80721396021 cubed (807213960213) is 525976077959091660861825814917261
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The
square root of 80721396021 is 284115.1105115671 -
The
cube root of 80721396021 is 4321.7823153503
Scales and comparisons
How big is 80721396021?- 80,721,396,021 seconds is equal to 2,566 years, 35 weeks, 6 days, 10 hours, 21 seconds.
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To count from 1 to 80,721,396,021 would take you about five thousand, one hundred thirty-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 80721396021 cubic inches would be around 360.1 feet tall.
Recreational maths with 80721396021
- 80721396021 backwards is 12069312708
- The number of decimal digits it has is: 11
- The sum of 80721396021's digits is 39
- More coming soon!
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