20021289984

Names of 20021289984

• Cardinal: 20021289984 can be written as Twenty billion, twenty-one million, two hundred eighty-nine thousand, nine hundred eighty-four.

Scientific notation

• Scientific notation: 2.0021289984 × 10¹⁰

Factors of 20021289984

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 70115

Divisors of 20021289984

• Number of divisors d(n): 132
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 31 32 36 48 62 64 72 93 96 124 128 144 186 192 248 256 279 288 372 384 496 512 558 576 744 768 992 1024 1116 1152 1488 1536 1984 2232 2304 2976 3072 3968 4464 4608 5952 7936 8928 9216 11904 15872 17856 23808 31744 35712 47616 70079 71424 95232 140158 142848 210237 280316 285696 420474 560632 630711 840948 1121264 1261422 1681896 2172449 2242528 2522844 3363792 4344898 4485056 5045688 6517347 6727584 8689796 8970112 10091376 13034694 13455168 17379592 17940224 19552041 20182752 26069388 26910336 34759184 35880448 39104082 40365504 52138776 53820672 69518368 71760896 78208164 80731008 104277552 107641344 139036736 156416328 161462016 208555104 215282688 278073472 312832656 322924032 417110208 556146944 625665312 645848064 834220416 1112293888 1251330624 1668440832 2224587776 2502661248 3336881664 5005322496 6673763328 10010644992 20021289984
• Sum of all divisors σ(n): 59676764160
• Sum of proper divisors (its aliquot sum) s(n): 39655474176
• 20021289984 is an abundant number, because the sum of its proper divisors (39655474176) is greater than itself. Its abundance is 19634184192

Bases of 20021289984

• Binary: 10010101001010111001010010000000000₂
• Hexadecimal: 0x4A95CA400
• Base-36: 9745Q80

Squares and roots of 20021289984

• 20021289984 squared (20021289984²) is 400852052623418720256
• 20021289984 cubed (20021289984³) is 8025575186255094147699550715904
• The square root of 20021289984 is 141496.6076766507
• The cube root of 20021289984 is 2715.3804401611

Scales and comparisons

• 20,021,289,984 seconds is equal to 636 years, 31 weeks, 6 days, 21 hours, 26 minutes, 24 seconds.
• To count from 1 to 20,021,289,984 would take you about one thousand, two hundred seventy-three 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 20021289984 cubic inches would be around 226.3 feet tall.

Recreational maths with 20021289984

• 20021289984 backwards is 48998212002
• The number of decimal digits it has is: 11
• The sum of 20021289984's digits is 45
• More coming soon!