20147420490

Names of 20147420490

• Cardinal: 20147420490 can be written as Twenty billion, one hundred forty-seven million, four hundred twenty thousand, four hundred ninety.

Scientific notation

• Scientific notation: 2.014742049 × 10¹⁰

Factors of 20147420490

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 912

Divisors of 20147420490

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 15 30 31 62 93 155 186 197 277 310 394 397 465 554 591 794 831 930 985 1182 1191 1385 1662 1970 1985 2382 2770 2955 3970 4155 5910 5955 6107 8310 8587 11910 12214 12307 17174 18321 24614 25761 30535 36642 36921 42935 51522 54569 61070 61535 73842 78209 85870 91605 109138 109969 123070 128805 156418 163707 183210 184605 219938 234627 257610 272845 327414 329907 369210 391045 469254 545690 549845 659814 782090 818535 1099690 1173135 1637070 1649535 1691639 2346270 2424479 3299070 3383278 3409039 4848958 5074917 6818078 7273437 8458195 10149834 10227117 12122395 14546874 16916390 17045195 20454234 21663893 24244790 25374585 34090390 36367185 43327786 50749170 51135585 64991679 72734370 102271170 108319465 129983358 216638930 324958395 649916790 671580683 1343161366 2014742049 3357903415 4029484098 6715806830 10073710245 20147420490
• Sum of all divisors σ(n): 50474907648
• Sum of proper divisors (its aliquot sum) s(n): 30327487158
• 20147420490 is an abundant number, because the sum of its proper divisors (30327487158) is greater than itself. Its abundance is 10180066668

Bases of 20147420490

• Binary: 10010110000111000010011110101001010₂
• Hexadecimal: 0x4B0E13D4A
• Base-36: 9979556

Squares and roots of 20147420490

• 20147420490 squared (20147420490²) is 405918552400871840100
• 20147420490 cubed (20147420490³) is 8178211759912464005094743649000
• The square root of 20147420490 is 141941.6094385293
• The cube root of 20147420490 is 2721.0706429839

Scales and comparisons

• 20,147,420,490 seconds is equal to 640 years, 32 weeks, 3 days, 17 hours, 41 minutes, 30 seconds.
• To count from 1 to 20,147,420,490 would take you about one thousand, two hundred eighty-one 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 20147420490 cubic inches would be around 226.8 feet tall.

Recreational maths with 20147420490

• 20147420490 backwards is 09402474102
• The number of decimal digits it has is: 11
• The sum of 20147420490's digits is 33
• More coming soon!