121721045984

Names of 121721045984

• Cardinal: 121721045984 can be written as One hundred twenty-one billion, seven hundred twenty-one million, forty-five thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 1.21721045984 × 10¹¹

Factors of 121721045984

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 164

Divisors of 121721045984

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 8 16 32 59 103 118 206 236 412 472 824 944 1648 1888 3296 3481 6077 6962 10609 12154 13924 21218 24308 27848 42436 48616 55696 84872 97232 111392 169744 194464 339488 358543 625931 717086 1092727 1251862 1434172 2185454 2503724 2868344 4370908 5007448 5736688 8741816 10014896 11473376 17483632 20029792 34967264 36929929 64470893 73859858 128941786 147719716 257883572 295439432 515767144 590878864 1031534288 1181757728 2063068576 3803782687 7607565374 15215130748 30430261496 60860522992 121721045984
• Sum of all divisors σ(n): 246158705520
• Sum of proper divisors (its aliquot sum) s(n): 124437659536
• 121721045984 is an abundant number, because the sum of its proper divisors (124437659536) is greater than itself. Its abundance is 2716613552

Bases of 121721045984

• Binary: 1110001010111001000111100001111100000₂
• Hexadecimal: 0x1C5723C3E0
• Base-36: 1JX1KG68

Squares and roots of 121721045984

• 121721045984 squared (121721045984²) is 14816013035439042528256
• 121721045984 cubed (121721045984³) is 1803420603986219117210780195323904
• The square root of 121721045984 is 348885.4338948533
• The cube root of 121721045984 is 4955.8926658539

Scales and comparisons

• 121,721,045,984 seconds is equal to 3,870 years, 18 weeks, 2 days, 9 hours, 39 minutes, 44 seconds.
• To count from 1 to 121,721,045,984 would take you about seven thousand, seven hundred forty 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 121721045984 cubic inches would be around 413 feet tall.

Recreational maths with 121721045984

• 121721045984 backwards is 489540127121
• The number of decimal digits it has is: 12
• The sum of 121721045984's digits is 44
• More coming soon!