81427107125
81,427,107,125 is an odd composite number composed of six prime numbers multiplied together.
81427107125 is an odd composite number. It is composed of six distinct prime numbers multiplied together. It has a total of one hundred ninety-two divisors.
Prime factorization of 81427107125:
53 × 7 × 13 × 31 × 37 × 792
(5 × 5 × 5 × 7 × 13 × 31 × 37 × 79 × 79)See below for interesting mathematical facts about the number 81427107125 from the Numbermatics database.
Names of 81427107125
- Cardinal: 81427107125 can be written as Eighty-one billion, four hundred twenty-seven million, one hundred seven thousand, one hundred twenty-five.
Scientific notation
- Scientific notation: 8.1427107125 × 1010
Factors of 81427107125
Divisors of 81427107125
- Number of divisors d(n): 192
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Complete list of divisors:
1 5 7 13 25 31 35 37 65 79 91 125 155 175 185 217 259 325 395 403 455 481 553 775 875 925 1027 1085 1147 1295 1625 1975 2015 2275 2405 2449 2765 2821 2923 3367 3875 4625 5135 5425 5735 6241 6475 7189 8029 9875 10075 11375 12025 12245 13825 14105 14615 14911 16835 17143 20461 25675 27125 28675 31205 31837 32375 35945 37999 40145 43687 50375 60125 61225 69125 70525 73075 74555 81133 84175 85715 90613 102305 104377 128375 143375 156025 159185 179725 189995 193471 200725 218435 222859 230917 265993 306125 352625 365375 372775 405665 420875 428575 453065 511525 521885 567931 634291 780125 795925 898625 949975 967355 1003625 1092175 1114295 1154585 1177969 1329965 1354297 1616419 1863875 2028325 2142875 2265325 2515123 2557625 2609425 2839655 3001921 3171455 3979625 4749875 4836775 5460875 5571475 5772925 5889845 6649825 6771485 7158427 8082095 8245783 10141625 11326625 12575615 13047125 14198275 15009605 15857275 17605861 21013447 24183875 27857375 28864625 29449225 33249125 33857425 35792135 40410475 41228915 50108989 62878075 70991375 75048025 79286375 88029305 93059551 105067235 147246125 169287125 178960675 202052375 206144575 250544945 314390375 375240125 440146525 465297755 525336175 651416857 894803375 1030722875 1252724725 2200732625 2326488775 2626680875 3257084285 6263623625 11632443875 16285421425 81427107125
- Sum of all divisors σ(n): 134295662592
- Sum of proper divisors (its aliquot sum) s(n): 52868555467
- 81427107125 is a deficient number, because the sum of its proper divisors (52868555467) is less than itself. Its deficiency is 28558551658
Bases of 81427107125
- Binary: 10010111101010110111100001101001101012
- Hexadecimal: 0x12F56F0D35
- Base-36: 11ENLHYT
Squares and roots of 81427107125
- 81427107125 squared (814271071252) is 6630373774746225765625
- 81427107125 cubed (814271071253) is 539892155635051545106982017578125
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The
square root of 81427107125 is 285354.3536114351 -
The
cube root of 81427107125 is 4334.3402606625
Scales and comparisons
How big is 81427107125?- 81,427,107,125 seconds is equal to 2,589 years, 6 weeks, 5 days, 8 hours, 52 minutes, 5 seconds.
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To count from 1 to 81,427,107,125 would take you about five thousand, one hundred seventy-eight 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 81427107125 cubic inches would be around 361.2 feet tall.
Recreational maths with 81427107125
- 81427107125 backwards is 52170172418
- The number of decimal digits it has is: 11
- The sum of 81427107125's digits is 38
- More coming soon!
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