81427371375
81,427,371,375 is an odd composite number composed of seven prime numbers multiplied together.
81427371375 is an odd composite number. It is composed of seven distinct prime numbers multiplied together. It has a total of two hundred fifty-six divisors.
Prime factorization of 81427371375:
3 × 53 × 7 × 17 × 19 × 137 × 701
(3 × 5 × 5 × 5 × 7 × 17 × 19 × 137 × 701)See below for interesting mathematical facts about the number 81427371375 from the Numbermatics database.
Names of 81427371375
- Cardinal: 81427371375 can be written as Eighty-one billion, four hundred twenty-seven million, three hundred seventy-one thousand, three hundred seventy-five.
Scientific notation
- Scientific notation: 8.1427371375 × 1010
Factors of 81427371375
Divisors of 81427371375
- Number of divisors d(n): 256
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Complete list of divisors:
1 3 5 7 15 17 19 21 25 35 51 57 75 85 95 105 119 125 133 137 175 255 285 323 357 375 399 411 425 475 525 595 665 685 701 875 959 969 1275 1425 1615 1785 1995 2055 2103 2125 2261 2329 2375 2603 2625 2877 2975 3325 3425 3505 4795 4845 4907 6375 6783 6987 7125 7809 8075 8925 9975 10275 10515 11305 11645 11917 13015 13319 14385 14721 14875 16303 16625 17125 17525 18221 23975 24225 24535 33915 34935 35751 39045 39957 40375 44251 44625 48909 49875 51375 52575 54663 56525 58225 59585 65075 66595 71925 73605 81515 83419 87625 91105 93233 96037 119875 121125 122675 132753 169575 174675 178755 195225 199785 221255 226423 244545 250257 262875 273315 279699 282625 288111 291125 297925 309757 325375 332975 359625 368025 407575 417095 455525 466165 480185 613375 663765 672259 679269 847875 873375 893775 929271 976125 998925 1106275 1132115 1222725 1251285 1366575 1398495 1440555 1489625 1548785 1584961 1632629 1664875 1824703 1840125 2016777 2037875 2085475 2277625 2330825 2400925 3318825 3361295 3396345 4468875 4646355 4754883 4897887 4994625 5474109 5531375 5660575 6113625 6256425 6832875 6992475 7202775 7743925 7924805 8163145 9123515 10083885 10427375 11428403 11654125 12004625 12772921 16594125 16806475 16981725 23231775 23774415 24489435 27370545 28302875 31019951 31282125 34285209 34962375 36013875 38318763 38719625 39624025 40815725 45617575 50419425 57142015 63864605 84032375 84908625 93059853 116158875 118872075 122447175 136852725 155099755 171426045 191593815 198120125 204078625 217139657 228087875 252097125 285710075 319323025 465299265 594360375 612235875 651418971 684263625 775498775 857130225 957969075 1085698285 1428550375 1596615125 2326496325 3257094855 3877493875 4285651125 4789845375 5428491425 11632481625 16285474275 27142457125 81427371375
- Sum of all divisors σ(n): 174097797120
- Sum of proper divisors (its aliquot sum) s(n): 92670425745
- 81427371375 is an abundant number, because the sum of its proper divisors (92670425745) is greater than itself. Its abundance is 11243054370
Bases of 81427371375
- Binary: 10010111101010111001100010101011011112
- Hexadecimal: 0x12F573156F
- Base-36: 11ENR5V3
Squares and roots of 81427371375
- 81427371375 squared (814273713752) is 6630416809042169390625
- 81427371375 cubed (814273713753) is 539897411880919185006079318359375
-
The
square root of 81427371375 is 285354.8166318557 -
The
cube root of 81427371375 is 4334.3449493065
Scales and comparisons
How big is 81427371375?- 81,427,371,375 seconds is equal to 2,589 years, 7 weeks, 1 day, 10 hours, 16 minutes, 15 seconds.
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To count from 1 to 81,427,371,375 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 81427371375 cubic inches would be around 361.2 feet tall.
Recreational maths with 81427371375
- 81427371375 backwards is 57317372418
- The number of decimal digits it has is: 11
- The sum of 81427371375's digits is 48
- More coming soon!
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