81429077295751020
81,429,077,295,751,020 is an even composite number composed of five prime numbers multiplied together.
81429077295751020 is an even composite number. It is composed of five distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 81429077295751020:
22 × 3 × 5 × 112 × 11216126349277
(2 × 2 × 3 × 5 × 11 × 11 × 11216126349277)See below for interesting mathematical facts about the number 81429077295751020 from the Numbermatics database.
Names of 81429077295751020
- Cardinal: 81429077295751020 can be written as Eighty-one quadrillion, four hundred twenty-nine trillion, seventy-seven billion, two hundred ninety-five million, seven hundred fifty-one thousand and twenty.
Scientific notation
- Scientific notation: 8.142907729575102 × 1016
Factors of 81429077295751020
- Number of distinct prime factors ω(n): 5
- Total number of prime factors Ω(n): 7
- Sum of prime factors: 11216126349298
Divisors of 81429077295751020
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 121 132 165 220 242 330 363 484 605 660 726 1210 1452 1815 2420 3630 7260 11216126349277 22432252698554 33648379047831 44864505397108 56080631746385 67296758095662 112161263492770 123377389842047 134593516191324 168241895239155 224322526985540 246754779684094 336483790478310 370132169526141 493509559368188 616886949210235 672967580956620 740264339052282 1233773898420470 1357151288262517 1480528678104564 1850660847630705 2467547796840940 2714302576525034 3701321695261410 4071453864787551 5428605153050068 6785756441312585 7402643390522820 8142907729575102 13571512882625170 16285815459150204 20357269323937755 27143025765250340 40714538647875510 81429077295751020
- Sum of all divisors σ(n): 250613127148267632
- Sum of proper divisors (its aliquot sum) s(n): 169184049852516612
- 81429077295751020 is an abundant number, because the sum of its proper divisors (169184049852516612) is greater than itself. Its abundance is 87754972556765592
Bases of 81429077295751020
- Binary: 1001000010100101101010000011110101001100111011111011011002
- Hexadecimal: 0x1214B507A99DF6C
- Base-36: M9S75OPF1PO
Squares and roots of 81429077295751020
- 81429077295751020 squared (814290772957510202) is 6630694629237394248285745831040400
- 81429077295751020 cubed (814290772957510203) is 539931345488692927428498286350860302701745961208000
-
The
square root of 81429077295751020 is 285357805.7382538469 -
The
cube root of 81429077295751020 is 433437.5217578071
Scales and comparisons
How big is 81429077295751020?- 81,429,077,295,751,020 seconds is equal to 2,589,192,781 years, 17 weeks, 1 day, 12 hours, 37 minutes.
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To count from 1 to 81,429,077,295,751,020 would take you about seven billion, seven hundred sixty-seven million, five hundred seventy-eight thousand, three hundred forty-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 81429077295751020 cubic inches would be around 36119.8 feet tall.
Recreational maths with 81429077295751020
- 81429077295751020 backwards is 02015759277092418
- The number of decimal digits it has is: 17
- The sum of 81429077295751020's digits is 69
- More coming soon!
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