121428754649524165

Names of 121428754649524165

• Cardinal: 121428754649524165 can be written as One hundred twenty-one quadrillion, four hundred twenty-eight trillion, seven hundred fifty-four billion, six hundred forty-nine million, five hundred twenty-four thousand, one hundred sixty-five.

Scientific notation

• Scientific notation: 1.21428754649524165 × 10¹⁷

Factors of 121428754649524165

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 33979

Divisors of 121428754649524165

• Number of divisors d(n): 128
• Complete list of divisors:
  1 5 17 85 137 257 421 685 1285 2105 2329 3221 4369 7157 11645 16105 21845 29921 35209 35785 54757 57677 108197 149605 176045 273785 288385 441277 508657 540985 598553 827797 980509 1356041 1839349 2206385 2543285 2992765 4099177 4138985 4902545 6780205 7501709 7689697 9196745 12596741 14072549 14822989 20495885 23052697 37508545 38448485 62983705 69686009 70362745 74114945 96375541 113408189 115263485 130724849 185777617 214144597 251990813 348430045 348502537 481877705 567040945 653624245 928888085 1053488489 1070722985 1259954065 1638384197 1725753517 1742512685 1927939213 3158219489 3237362437 5267442445 5924543129 8191920985 8628767585 9639696065 13203449117 15791097445 16186812185 17909304313 24768514037 29337809789 29622715645 40574102761 47744847569 55035161429 66017245585 89546521565 123842570185 146689048945 202870513805 224458634989 238724237845 275175807145 421064738629 443518653869 689759746937 811662408673 1122293174945 2105323693145 2217593269345 3393286423069 3448798734685 4058312043365 5558652078257 7539817115773 10427544409577 16966432115345 27793260391285 37699085578865 52137722047885 57685869192173 94497085330369 177268254962809 288429345960865 472485426651845 886341274814045 1428573584112049 7142867920560245 24285750929904833 121428754649524165
• Sum of all divisors σ(n): 156441205367358336
• Sum of proper divisors (its aliquot sum) s(n): 35012450717834171
• 121428754649524165 is a deficient number, because the sum of its proper divisors (35012450717834171) is less than itself. Its deficiency is 86416303931689994

Bases of 121428754649524165

• Binary: 110101111011001101100111100011010011001110010011111000101₂
• Hexadecimal: 0x1AF66CF1A6727C5
• Base-36: X7MWFS8SFYD

Squares and roots of 121428754649524165

• 121428754649524165 squared (121428754649524165²) is 14744942455734336519562460918947225
• 121428754649524165 cubed (121428754649524165³) is 1790459999778717075121060644259270117231978997192125
• The square root of 121428754649524165 is 348466289.1149216531
• The cube root of 121428754649524165 is 495192.2589553601

Scales and comparisons

• 121,428,754,649,524,165 seconds is equal to 3,861,058,794 years, 2 weeks, 6 days, 3 hours, 49 minutes, 25 seconds.
• To count from 1 to 121,428,754,649,524,165 would take you about eleven billion, five hundred eighty-three million, one hundred seventy-six thousand, three 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 121428754649524165 cubic inches would be around 41266 feet tall.

Recreational maths with 121428754649524165

• 121428754649524165 backwards is 561425946457824121
• The number of decimal digits it has is: 18
• The sum of 121428754649524165's digits is 76
• More coming soon!