81427479040
81,427,479,040 is an even composite number composed of four prime numbers multiplied together.
81427479040 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of eighty divisors.
Prime factorization of 81427479040:
29 × 5 × 449 × 70841
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 5 × 449 × 70841)See below for interesting mathematical facts about the number 81427479040 from the Numbermatics database.
Names of 81427479040
- Cardinal: 81427479040 can be written as Eighty-one billion, four hundred twenty-seven million, four hundred seventy-nine thousand and forty.
Scientific notation
- Scientific notation: 8.142747904 × 1010
Factors of 81427479040
Divisors of 81427479040
- Number of divisors d(n): 80
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Complete list of divisors:
1 2 4 5 8 10 16 20 32 40 64 80 128 160 256 320 449 512 640 898 1280 1796 2245 2560 3592 4490 7184 8980 14368 17960 28736 35920 57472 70841 71840 114944 141682 143680 229888 283364 287360 354205 566728 574720 708410 1133456 1149440 1416820 2266912 2833640 4533824 5667280 9067648 11334560 18135296 22669120 31807609 36270592 45338240 63615218 90676480 127230436 159038045 181352960 254460872 318076090 508921744 636152180 1017843488 1272304360 2035686976 2544608720 4071373952 5089217440 8142747904 10178434880 16285495808 20356869760 40713739520 81427479040
- Sum of all divisors σ(n): 195672688200
- Sum of proper divisors (its aliquot sum) s(n): 114245209160
- 81427479040 is an abundant number, because the sum of its proper divisors (114245209160) is greater than itself. Its abundance is 32817730120
Bases of 81427479040
- Binary: 10010111101010111010010111010000000002
- Hexadecimal: 0x12F574BA00
- Base-36: 11ENTGXS
Squares and roots of 81427479040
- 81427479040 squared (814274790402) is 6630434342809639321600
- 81427479040 cubed (814274790403) is 539899553475228080569543819264000
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The
square root of 81427479040 is 285355.0052828931 -
The
cube root of 81427479040 is 4334.3468596267
Scales and comparisons
How big is 81427479040?- 81,427,479,040 seconds is equal to 2,589 years, 7 weeks, 2 days, 16 hours, 10 minutes, 40 seconds.
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To count from 1 to 81,427,479,040 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 81427479040 cubic inches would be around 361.2 feet tall.
Recreational maths with 81427479040
- 81427479040 backwards is 04097472418
- The number of decimal digits it has is: 11
- The sum of 81427479040's digits is 46
- More coming soon!
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