20387123988

Names of 20387123988

• Cardinal: 20387123988 can be written as Twenty billion, three hundred eighty-seven million, one hundred twenty-three thousand, nine hundred eighty-eight.

Scientific notation

• Scientific notation: 2.0387123988 × 10¹⁰

Factors of 20387123988

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 160

Divisors of 20387123988

• Number of divisors d(n): 168
• Complete list of divisors:
  1 2 3 4 6 7 11 12 14 21 22 28 33 42 44 66 77 84 121 132 137 154 231 242 274 308 363 411 462 484 548 726 822 847 924 959 1331 1452 1507 1644 1694 1918 2541 2662 2877 3014 3388 3836 3993 4521 5082 5324 5754 6028 7986 9042 9317 10164 10549 11508 14641 15972 16577 18084 18634 21098 27951 29282 31647 33154 37268 42196 43923 49731 55902 58564 63294 66308 87846 99462 102487 111804 116039 126588 161051 175692 182347 198924 204974 232078 307461 322102 348117 364694 409948 464156 483153 547041 614922 644204 696234 729388 966306 1094082 1127357 1229844 1276429 1392468 1771561 1932612 2005817 2188164 2254714 2552858 3382071 3543122 3829287 4011634 4509428 5105716 5314683 6017451 6764142 7086244 7658574 8023268 10629366 12034902 12400927 13528284 14040719 15317148 21258732 22063987 24069804 24801854 28081438 37202781 42122157 44127974 49603708 56162876 66191961 74405562 84244314 88255948 132383922 148811124 154447909 168488628 242703857 264767844 308895818 463343727 485407714 617791636 728111571 926687454 970815428 1456223142 1698926999 1853374908 2912446284 3397853998 5096780997 6795707996 10193561994 20387123988
• Sum of all divisors σ(n): 60238739904
• Sum of proper divisors (its aliquot sum) s(n): 39851615916
• 20387123988 is an abundant number, because the sum of its proper divisors (39851615916) is greater than itself. Its abundance is 19464491928

Bases of 20387123988

• Binary: 10010111111001010101101001100010100₂
• Hexadecimal: 0x4BF2AD314
• Base-36: 9D5YTJO

Squares and roots of 20387123988

• 20387123988 squared (20387123988²) is 415634824502085024144
• 20387123988 cubed (20387123988³) is 8473598700854627751741701566272
• The square root of 20387123988 is 142783.4863981125
• The cube root of 20387123988 is 2731.8194202123

Scales and comparisons

• 20,387,123,988 seconds is equal to 648 years, 12 weeks, 6 days, 1 hour, 59 minutes, 48 seconds.
• To count from 1 to 20,387,123,988 would take you about one thousand, two hundred ninety-six 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 20387123988 cubic inches would be around 227.7 feet tall.

Recreational maths with 20387123988

• 20387123988 backwards is 88932178302
• The number of decimal digits it has is: 11
• The sum of 20387123988's digits is 51
• More coming soon!