81116736
81,116,736 is an even composite number composed of five prime numbers multiplied together.
81116736 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of one hundred twelve divisors.
Prime factorization of 81116736:
26 × 3 × 47 × 89 × 101
(2 × 2 × 2 × 2 × 2 × 2 × 3 × 47 × 89 × 101)See below for interesting mathematical facts about the number 81116736 from the Numbermatics database.
Names of 81116736
- Cardinal: 81116736 can be written as Eighty-one million, one hundred sixteen thousand, seven hundred thirty-six.
Scientific notation
- Scientific notation: 8.1116736 × 107
Factors of 81116736
Divisors of 81116736
- Number of divisors d(n): 112
-
Complete list of divisors:
1 2 3 4 6 8 12 16 24 32 47 48 64 89 94 96 101 141 178 188 192 202 267 282 303 356 376 404 534 564 606 712 752 808 1068 1128 1212 1424 1504 1616 2136 2256 2424 2848 3008 3232 4183 4272 4512 4747 4848 5696 6464 8366 8544 8989 9024 9494 9696 12549 14241 16732 17088 17978 18988 19392 25098 26967 28482 33464 35956 37976 50196 53934 56964 66928 71912 75952 100392 107868 113928 133856 143824 151904 200784 215736 227856 267712 287648 303808 401568 422483 431472 455712 575296 803136 844966 862944 911424 1267449 1689932 1725888 2534898 3379864 5069796 6759728 10139592 13519456 20279184 27038912 40558368 81116736
- Sum of all divisors σ(n): 223845120
- Sum of proper divisors (its aliquot sum) s(n): 142728384
- 81116736 is an abundant number, because the sum of its proper divisors (142728384) is greater than itself. Its abundance is 61611648
Bases of 81116736
- Binary: 1001101010110111110010000002
- Hexadecimal: 0x4D5BE40
- Base-36: 1CAM2O
Squares and roots of 81116736
- 81116736 squared (811167362) is 6579924859293696
- 81116736 cubed (811167363) is 533742027711163884896256
-
The
square root of 81116736 is 9006.4829983741 -
The
cube root of 81116736 is 432.8826261911
Scales and comparisons
How big is 81116736?- 81,116,736 seconds is equal to 2 years, 30 weeks, 20 hours, 25 minutes, 36 seconds.
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To count from 1 to 81,116,736 would take you about 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 81116736 cubic inches would be around 36.1 feet tall.
Recreational maths with 81116736
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