81431855046342

Names of 81431855046342

• Cardinal: 81431855046342 can be written as Eighty-one trillion, four hundred thirty-one billion, eight hundred fifty-five million, forty-six thousand, three hundred forty-two.

Scientific notation

• Scientific notation: 8.1431855046342 × 10¹³

Factors of 81431855046342

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 284

Divisors of 81431855046342

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 9 18 27 29 53 54 58 81 87 106 159 162 174 197 243 261 318 394 477 486 522 591 783 954 1182 1431 1537 1566 1773 2349 2809 2862 3074 3546 4293 4611 4698 5319 5618 5713 7047 8427 8586 9222 10441 10638 11426 12879 13833 14094 15957 16854 17139 20882 25281 25758 27666 31323 31914 34278 38809 41499 47871 50562 51417 62646 75843 77618 81461 82998 93969 95742 102834 116427 124497 148877 151686 154251 162922 187938 227529 232854 244383 248994 281907 297754 302789 308502 349281 373491 446631 455058 462753 488766 553373 563814 605578 682587 698562 733149 746982 845721 893262 908367 925506 1047843 1106746 1125461 1339893 1365174 1388259 1466298 1660119 1691442 1816734 2056877 2095686 2199447 2250922 2537163 2679786 2725101 2776518 3143529 3320238 3376383 4019679 4113754 4317433 4398894 4980357 5074326 5450202 6170631 6287058 6598341 6752766 8039358 8175303 8634866 9430587 9960714 10129149 12059037 12341262 12952299 13196682 14941071 16047817 16350606 18511893 18861174 19795023 20258298 24118074 24525909 25904598 29328769 29882142 30387447 32095634 36177111 37023786 38856897 39590046 44823213 48143451 49051818 55535679 58657538 59649433 60774894 72354222 73577727 77713794 87986307 89646426 91162341 96286902 109014481 111071358 116570691 119298866 134469639 144430353 147155454 166607037 175972614 178948299 182324682 218028962 233141382 263958921 268939278 273487023 288860706 327043443 333214074 349712073 357896598 433291059 499821111 527917842 536844897 546974046 654086886 699424146 791876763 850534301 866582118 981130329 999642222 1049136219 1073689794 1299873177 1583753526 1610534691 1701068602 1962260658 2098272438 2375630289 2551602903 2599746354 2943390987 3161419949 3221069382 3899619531 4751260578 4831604073 5103205806 5777767493 5886781974 6322839898 7126890867 7654808709 7799239062 8830172961 9484259847 9663208146 11555534986 14253781734 14494812219 15309617418 17333302479 17660345922 18968519694 22964426127 26490518883 28452779541 28989624438 34666604958 45928852254 51999907437 52981037766 56905559082 68893278381 85358338623 103999814874 137786556762 155999722311 167555257297 170716677246 206679835143 256075015869 311999444622 335110514594 413359670286 467999166933 502665771891 512150031738 768225047607 935998333866 1005331543782 1403997500799 1507997315673 1536450095214 2807995001598 3015994631346 4523991947019 9047983894038 13571975841057 27143951682114 40715927523171 81431855046342
• Sum of all divisors σ(n): 193903890616800
• Sum of proper divisors (its aliquot sum) s(n): 112472035570458
• 81431855046342 is an abundant number, because the sum of its proper divisors (112472035570458) is greater than itself. Its abundance is 31040180524116

Bases of 81431855046342

• Binary: 10010100000111111010100110010110001111011000110₂
• Hexadecimal: 0x4A0FD4CB1EC6
• Base-36: SV59ZZIDI

Squares and roots of 81431855046342

• 81431855046342 squared (81431855046342²) is 6631147016288455050967580964
• 81431855046342 cubed (81431855046342³) is 539986602621384724913249246733147857033688
• The square root of 81431855046342 is 9023960.0534544699
• The cube root of 81431855046342 is 43344.2450249701

Scales and comparisons

• 81,431,855,046,342 seconds is equal to 2,589,281 years, 5 weeks, 3 days, 7 hours, 5 minutes, 42 seconds.
• To count from 1 to 81,431,855,046,342 would take you about six million, four hundred seventy-three thousand, two hundred two 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 81431855046342 cubic inches would be around 3612 feet tall.

Recreational maths with 81431855046342

• 81431855046342 backwards is 24364055813418
• 81431855046342 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 81431855046342's digits is 54
• More coming soon!