81490588270

Names of 81490588270

• Cardinal: 81490588270 can be written as Eighty-one billion, four hundred ninety million, five hundred eighty-eight thousand, two hundred seventy.

Scientific notation

• Scientific notation: 8.149058827 × 10¹⁰

Factors of 81490588270

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 197

Divisors of 81490588270

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 5 7 10 13 14 19 26 35 38 49 65 70 91 95 98 130 133 151 169 182 190 245 247 266 302 338 343 455 490 494 637 665 686 755 845 910 931 1057 1183 1235 1274 1330 1510 1690 1715 1729 1862 1963 2114 2366 2401 2470 2869 3185 3211 3430 3458 3926 4459 4655 4802 5285 5738 5915 6370 6422 6517 7399 8281 8645 8918 9310 9815 10570 11830 12005 12103 13034 13741 14345 14798 16055 16562 16807 17290 19630 20083 22295 22477 24010 24206 25519 27482 28690 31213 32110 32585 33614 36995 37297 40166 41405 44590 44954 45619 51038 51793 57967 60515 62426 65170 68705 73990 74594 82810 84035 84721 91238 96187 100415 103586 112385 115934 121030 127595 137410 140581 156065 157339 168070 169442 178633 186485 192374 200830 218491 224770 228095 255190 258965 261079 281162 289835 312130 314678 319333 357266 362551 372970 405769 423605 436982 456190 480935 484861 517930 522158 579670 593047 638666 673309 702905 725102 786695 811538 847210 893165 961870 969722 984067 1092455 1101373 1186094 1250431 1305395 1346618 1405810 1573390 1596665 1786330 1812755 1827553 1968134 2028845 2184910 2202746 2424305 2500862 2537857 2610790 2840383 2965235 3193330 3366545 3394027 3625510 3655106 4057690 4151329 4713163 4848610 4920335 5075714 5506865 5680766 5930470 6252155 6733090 6788054 6888469 7709611 8302658 8753017 9137765 9426326 9840670 11013730 12504310 12689285 12792871 13776938 14201915 15419222 16970135 17506034 18275530 20756645 23565815 23758189 25378570 25585742 28403830 32992141 33940270 34442345 38548055 41513290 43765085 47131630 47516378 48219283 53967277 61271119 63964355 65984282 68884690 77096110 87530170 89550097 96438566 107934554 118790945 122542238 127928710 164960705 166307323 179100194 237581890 241096415 269836385 306355595 329921410 332614646 428897833 447750485 482192830 539672770 612711190 626850679 831536615 857795666 895500970 1164151261 1253701358 1663073230 2144489165 2328302522 3134253395 4288978330 5820756305 6268506790 8149058827 11641512610 16298117654 40745294135 81490588270
• Sum of all divisors σ(n): 196349806080
• Sum of proper divisors (its aliquot sum) s(n): 114859217810
• 81490588270 is an abundant number, because the sum of its proper divisors (114859217810) is greater than itself. Its abundance is 33368629540

Bases of 81490588270

• Binary: 1001011111001001101111011001001101110₂
• Hexadecimal: 0x12F937B26E
• Base-36: 11FPE4BY

Squares and roots of 81490588270

• 81490588270 squared (81490588270²) is 6640715976590661592900
• 81490588270 cubed (81490588270³) is 541155851466360562193916255283000
• The square root of 81490588270 is 285465.5640703445
• The cube root of 81490588270 is 4335.4663287929

Scales and comparisons

• 81,490,588,270 seconds is equal to 2,591 years, 7 weeks, 5 days, 2 hours, 31 minutes, 10 seconds.
• To count from 1 to 81,490,588,270 would take you about five thousand, one hundred eighty-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 81490588270 cubic inches would be around 361.3 feet tall.

Recreational maths with 81490588270

• 81490588270 backwards is 07288509418
• The number of decimal digits it has is: 11
• The sum of 81490588270's digits is 52
• More coming soon!