81027489555480

Names of 81027489555480

• Cardinal: 81027489555480 can be written as Eighty-one trillion, twenty-seven billion, four hundred eighty-nine million, five hundred fifty-five thousand, four hundred eighty.

Scientific notation

• Scientific notation: 8.102748955548 × 10¹³

Factors of 81027489555480

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4429

Divisors of 81027489555480

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 229 260 312 338 390 458 507 520 676 687 780 845 916 1014 1145 1352 1374 1560 1690 1832 2028 2290 2535 2748 2977 3380 3435 4056 4177 4580 5070 5496 5954 6760 6870 8354 8931 9160 10140 11908 12531 13740 14885 16708 17862 20280 20885 23816 25062 27480 29770 33416 35724 38701 41770 44655 50124 54301 59540 62655 71448 77402 83540 89310 100248 108602 116103 119080 125310 154804 162903 167080 178620 193505 217204 232206 250620 271505 309608 325806 357240 387010 434408 464412 501240 543010 580515 651612 705913 774020 814515 928824 956533 1086020 1161030 1303224 1411826 1548040 1629030 1913066 2117739 2172040 2322060 2823652 2869599 3258060 3529565 3826132 4235478 4644120 4782665 5647304 5739198 6516120 7059130 7652264 8470956 9565330 10588695 11478396 12434929 14118260 14347995 16941912 17447329 19130660 21177390 22956792 24869858 28236520 28695990 34894658 37304787 38261320 42354780 49739716 52341987 57391980 62174645 69789316 74609574 84709560 87236645 99479432 104683974 114783960 124349290 139578632 149219148 161654077 174473290 186523935 209367948 226815277 248698580 261709935 298438296 323308154 348946580 373047870 418735896 453630554 484962231 497397160 523419870 646616308 680445831 697893160 746095740 808270385 907261108 969924462 1046839740 1134076385 1293232616 1360891662 1492191480 1616540770 1814522216 1939848924 2093679480 2268152770 2424811155 2721783324 2948598601 3233081540 3402229155 3879697848 3995438341 4536305540 4849622310 5443566648 5897197202 6466163080 6804458310 7990876682 8845795803 9072611080 9699244620 11794394404 11986315023 13608916620 14742993005 15981753364 17691591606 19398489240 19977191705 23588788808 23972630046 27217833240 29485986010 31963506728 35383183212 39954383410 44228979015 47945260092 51940698433 58971972020 59931575115 70766366424 79908766820 88457958030 95890520184 103881396866 117943944040 119863150230 155822095299 159817533640 176915916060 207762793732 239726300460 259703492165 311644190598 353831832120 415525587464 479452600920 519406984330 623288381196 675229079629 779110476495 1038813968660 1246576762392 1350458159258 1558220952990 2025687238887 2077627937320 2700916318516 3116441905980 3376145398145 4051374477774 5401832637032 6232883811960 6752290796290 8102748955548 10128436194435 13504581592580 16205497911096 20256872388870 27009163185160 40513744777740 81027489555480
• Sum of all divisors σ(n): 264432214666800
• Sum of proper divisors (its aliquot sum) s(n): 183404725111320
• 81027489555480 is an abundant number, because the sum of its proper divisors (183404725111320) is greater than itself. Its abundance is 102377235555840

Bases of 81027489555480

• Binary: 10010011011000110101110101110110110010000011000₂
• Hexadecimal: 0x49B1AEBB6418
• Base-36: SPZIJ7ORC

Squares and roots of 81027489555480

• 81027489555480 squared (81027489555480²) is 6565454063663420487998030400
• 81027489555480 cubed (81027489555480³) is 531982260570471526577391852930811526592000
• The square root of 81027489555480 is 9001527.0679746333
• The cube root of 81027489555480 is 43272.3812222285

Scales and comparisons

• 81,027,489,555,480 seconds is equal to 2,576,423 years, 27 weeks, 5 days, 3 hours, 38 minutes.
• To count from 1 to 81,027,489,555,480 would take you about six million, four hundred forty-one thousand and fifty-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 81027489555480 cubic inches would be around 3606 feet tall.

Recreational maths with 81027489555480

• 81027489555480 backwards is 08455598472018
• The number of decimal digits it has is: 14
• The sum of 81027489555480's digits is 66
• More coming soon!