81742152375

Names of 81742152375

• Cardinal: 81742152375 can be written as Eighty-one billion, seven hundred forty-two million, one hundred fifty-two thousand, three hundred seventy-five.

Scientific notation

• Scientific notation: 8.1742152375 × 10¹⁰

Factors of 81742152375

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 142

Divisors of 81742152375

• Number of divisors d(n): 480
• Complete list of divisors:
  1 3 5 9 13 15 23 25 27 31 39 45 65 67 69 75 81 93 115 117 125 135 155 169 195 201 207 225 279 299 325 335 345 351 375 403 405 465 507 575 585 603 621 675 713 775 837 845 871 897 975 1005 1035 1053 1125 1209 1395 1495 1521 1541 1625 1675 1725 1755 1809 1863 2015 2025 2077 2139 2325 2511 2535 2613 2691 2875 2925 3015 3105 3375 3565 3627 3875 3887 4185 4225 4355 4485 4563 4623 4875 5025 5175 5239 5265 5427 6045 6231 6417 6975 7475 7605 7705 7839 8073 8375 8625 8775 9045 9269 9315 10075 10125 10385 10695 10881 11323 11625 11661 12555 12675 13065 13455 13689 13869 14625 15075 15525 15717 17825 18135 18693 19251 19435 20033 20925 21125 21775 22425 22815 23115 23517 24219 25125 25875 26195 26325 27001 27135 27807 30225 31155 32085 32643 33969 34875 34983 37375 38025 38525 39195 40365 41607 43875 45225 46345 46575 47151 47771 50375 51925 53475 54405 56079 56615 57753 58305 60099 62775 63375 65325 67275 68445 69345 70551 75375 77625 78585 81003 83421 89125 90675 93465 96255 97175 100165 101907 104625 104949 108875 112125 114075 115575 117585 120497 121095 124821 130975 131625 135005 135675 139035 141453 143313 151125 155775 160425 163215 168237 169845 174915 180297 190125 192625 195975 201825 208035 226125 231725 232875 235755 238855 243009 250263 259625 260429 267375 272025 280395 283075 288765 291525 300495 305721 313875 314847 326625 336375 342225 346725 351013 352755 361491 392925 405015 417105 424359 429939 453375 467325 481275 485875 500825 509535 524745 540891 570375 577875 587925 602485 605475 621023 624105 654875 675025 678375 695175 707265 716565 729027 750789 778875 781287 802125 816075 841185 849225 874575 901485 917163 979875 1009125 1040175 1053039 1084473 1158625 1178775 1194275 1215045 1251315 1289817 1302145 1360125 1401975 1415375 1443825 1457625 1502475 1528605 1574235 1622673 1711125 1733625 1755065 1763775 1807455 1863069 1964625 2025075 2085525 2121795 2149695 2187081 2336625 2343861 2406375 2504125 2547675 2623725 2704455 2939625 3012425 3027375 3105115 3120525 3159117 3253419 3375125 3475875 3536325 3582825 3645135 3753945 3869451 3906435 4080375 4205925 4246125 4372875 4507425 4585815 5200875 5265195 5422365 5589207 5893875 5971375 6075225 6256575 6449085 6510725 7009875 7031583 7219125 7512375 7643025 7871175 8073299 8113365 8775325 8818875 9037275 9315345 9477351 9760257 10125375 10427625 10608975 10748475 10935405 11719305 12738375 13118625 13522275 15062125 15525575 15602625 15795585 16267095 16767621 17681625 17914125 18225675 18769725 19347255 19532175 21029625 21094749 22537125 22929075 24219897 26325975 27111825 27946035 28432053 30376125 31282875 32245425 32553625 35157915 38215125 39355875 40366495 40566825 43876625 45186375 46576725 47386755 48801285 50302863 53044875 53742375 54677025 58596525 67611375 72659691 77627875 78977925 81335475 83838105 91128375 93848625 96736275 97660875 105473745 114645375 121099485 131629875 135559125 139730175 142160265 161227125 175789575 201832475 202834125 217979073 232883625 236933775 244006425 251514315 273385125 292982625 363298455 394889625 406677375 419190525 483681375 527368725 605497425 653937219 698650875 710801325 878947875 1009162375 1089895365 1184668875 1220032125 1257571575 1816492275 2095952625 2636843625 3027487125 3269686095 3554006625 5449476825 6287857875 9082461375 16348430475 27247384125 81742152375
• Sum of all divisors σ(n): 180397780992
• Sum of proper divisors (its aliquot sum) s(n): 98655628617
• 81742152375 is an abundant number, because the sum of its proper divisors (98655628617) is greater than itself. Its abundance is 16913476242

Bases of 81742152375

• Binary: 1001100001000001101100100001010110111₂
• Hexadecimal: 0x13083642B7
• Base-36: 11JV60FR

Squares and roots of 81742152375

• 81742152375 squared (81742152375²) is 6681779474897718140625
• 81742152375 cubed (81742152375³) is 546183035973236763790770427734375
• The square root of 81742152375 is 285905.8452970139
• The cube root of 81742152375 is 4339.9229879905

Scales and comparisons

• 81,742,152,375 seconds is equal to 2,599 years, 7 weeks, 4 days, 17 hours, 26 minutes, 15 seconds.
• To count from 1 to 81,742,152,375 would take you about five thousand, one hundred ninety-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 81742152375 cubic inches would be around 361.7 feet tall.

Recreational maths with 81742152375

• 81742152375 backwards is 57325124718
• 81742152375 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 81742152375's digits is 45
• More coming soon!