121605260161200728

Names of 121605260161200728

• Cardinal: 121605260161200728 can be written as One hundred twenty-one quadrillion, six hundred five trillion, two hundred sixty billion, one hundred sixty-one million, two hundred thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 1.21605260161200728 × 10¹⁷

Factors of 121605260161200728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 169

Divisors of 121605260161200728

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 4 8 11 19 22 38 44 76 88 121 137 152 209 242 274 418 484 548 836 968 1096 1507 1672 2299 2603 3014 4598 5206 6028 9196 10412 12056 16577 18392 18769 20824 28633 33154 37538 57266 66308 75076 114532 132616 150152 206459 229064 314963 356611 412918 629926 713222 825836 1259852 1426444 1651672 2271049 2519704 2571353 2852888 3922721 4542098 5142706 7845442 9084196 10285412 15690884 18168392 20570824 28284883 31381768 43149931 48855707 56569766 86299862 97711414 113139532 172599724 195422828 226279064 311133713 345199448 352275361 390845656 537412777 622267426 704550722 1074825554 1244534852 1409101444 2149651108 2489069704 2818202888 3875028971 4299302216 5911540547 6693231859 7750057942 11823081094 13386463718 15500115884 23646162188 26772927436 31000231768 42625318681 47292324376 48261724457 53545854872 73625550449 85250637362 96523448914 147251100898 170501274724 193046897828 294502201796 341002549448 386093795656 530878969027 589004403592 809881054939 916972764683 1061757938054 1619762109878 1833945529366 2123515876108 3239524219756 3667891058732 4247031752216 5839668659297 6479048439512 6611856250609 7335782117464 10086700411513 11679337318594 13223712501218 20173400823026 23358674637188 26447425002436 40346801646052 46717349274376 52894850004872 72730418756699 80693603292104 110953704526643 125625268761571 145460837513398 221907409053286 251250537523142 290921675026796 443814818106572 502501075046284 581843350053592 800034606323689 887629636213144 1005002150092568 1381877956377281 1600069212647378 2763755912754562 3200138425294756 5527511825509124 6400276850589512 11055023651018248 15200657520150091 30401315040300182 60802630080600364 121605260161200728
• Sum of all divisors σ(n): 265752866343411300
• Sum of proper divisors (its aliquot sum) s(n): 144147606182210572
• 121605260161200728 is an abundant number, because the sum of its proper divisors (144147606182210572) is greater than itself. Its abundance is 22542346021009844

Bases of 121605260161200728

• Binary: 110110000000001110101011011111110101110100011001001011000₂
• Hexadecimal: 0x1B00756FEBA3258
• Base-36: X9DGTAP7DQW

Squares and roots of 121605260161200728

• 121605260161200728 squared (121605260161200728²) is 14787839298873312907244234707729984
• 121605260161200728 cubed (121605260161200728³) is 1798279045161517383672178665554095822804780648228352
• The square root of 121605260161200728 is 348719457.6750783031
• The cube root of 121605260161200728 is 495432.0754305453
• Being both a perfect square and a perfect cube, 121605260161200728 is also a perfect sixth number.

Scales and comparisons

• 121,605,260,161,200,728 seconds is equal to 3,866,671,123 years, 18 weeks, 4 days, 18 hours, 52 minutes, 8 seconds.
• To count from 1 to 121,605,260,161,200,728 would take you about eleven billion, six hundred million, thirteen thousand, three hundred seventy 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 121605260161200728 cubic inches would be around 41286 feet tall.

Recreational maths with 121605260161200728

• 121605260161200728 backwards is 827002161062506121
• The number of decimal digits it has is: 18
• The sum of 121605260161200728's digits is 50
• More coming soon!