81616282814733429

Names of 81616282814733429

• Cardinal: 81616282814733429 can be written as Eighty-one quadrillion, six hundred sixteen trillion, two hundred eighty-two billion, eight hundred fourteen million, seven hundred thirty-three thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 8.1616282814733429 × 10¹⁶

Factors of 81616282814733429

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1147

Divisors of 81616282814733429

• Number of divisors d(n): 144
• Complete list of divisors:
  1 3 7 19 21 57 133 241 361 399 723 877 1083 1687 2527 2631 4579 5061 6139 7581 13737 16663 18417 32053 49989 58081 87001 96159 116641 174243 211357 261003 316597 349923 406567 609007 634071 769129 949791 1103539 1219701 1479499 1827021 2216179 2307387 3310617 4015783 4438497 5383903 6648537 7724773 12047349 13997521 14613451 16151709 20967241 23174319 28110481 41992563 43840353 50937037 62901723 76299877 84331443 97982647 102294157 146770687 152811111 185360089 228899631 265952899 277655569 293947941 306882471 356559259 440312061 534099139 556080267 797858697 832966707 967803703 1069677777 1297520623 1602297417 1861670293 1943588983 2903411109 3521841691 3892561869 5053105081 5585010879 5830766949 6774625921 10565525073 12275825917 15159315243 18388270357 20323877763 24652891837 35371735567 36827477751 44671781449 55164811071 66914992129 73958675511 85930781419 106115206701 128717892499 134015344347 200744976387 233240692423 257792344257 312702470143 386153677497 468404944903 699722077269 848763847531 938107410429 1405214834709 1632684846961 2546291542593 4431573156037 4898054540883 5941346932717 10765899329209 13294719468111 16126513103089 17824040798151 31021012092259 32297697987627 48379539309267 75361295304463 93063036276777 112885591721623 204552087254971 226083885913389 338656775164869 613656261764913 1431864610784797 3886489657844449 4295593832354391 11659468973533347 27205427604911143 81616282814733429
• Sum of all divisors σ(n): 131955214118910336
• Sum of proper divisors (its aliquot sum) s(n): 50338931304176907
• 81616282814733429 is a deficient number, because the sum of its proper divisors (50338931304176907) is less than itself. Its deficiency is 31277351510556522

Bases of 81616282814733429

• Binary: 100100001111101011001001110101001000011110101110001110101₂
• Hexadecimal: 0x121F593A90F5C75
• Base-36: MBMK2PPX08L

Squares and roots of 81616282814733429

• 81616282814733429 squared (81616282814733429²) is 6661217620494551255972516330098041
• 81616282814733429 cubed (81616282814733429³) is 543663821204768948031653497641631761282834850112589
• The square root of 81616282814733429 is 285685636.3465503823
• The cube root of 81616282814733429 is 433769.4252843075

Scales and comparisons

• 81,616,282,814,733,429 seconds is equal to 2,595,145,337 years, 40 weeks, 7 hours, 17 minutes, 9 seconds.
• To count from 1 to 81,616,282,814,733,429 would take you about seven billion, seven hundred eighty-five million, four hundred thirty-six thousand and thirteen 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 81616282814733429 cubic inches would be around 36147.5 feet tall.

Recreational maths with 81616282814733429

• 81616282814733429 backwards is 92433741828261618
• The number of decimal digits it has is: 17
• The sum of 81616282814733429's digits is 75
• More coming soon!