20897985120

Names of 20897985120

• Cardinal: 20897985120 can be written as Twenty billion, eight hundred ninety-seven million, nine hundred eighty-five thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.089798512 × 10¹⁰

Factors of 20897985120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1817

Divisors of 20897985120

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 61 80 96 120 122 160 183 240 244 305 366 480 488 610 653 732 915 976 1093 1220 1306 1464 1830 1952 1959 2186 2440 2612 2928 3265 3279 3660 3918 4372 4880 5224 5465 5856 6530 6558 7320 7836 8744 9760 9795 10448 10930 13060 13116 14640 15672 16395 17488 19590 20896 21860 26120 26232 29280 31344 32790 34976 39180 39833 43720 52240 52464 62688 65580 66673 78360 79666 87440 104480 104928 119499 131160 133346 156720 159332 174880 199165 200019 238998 262320 266692 313440 318664 333365 398330 400038 477996 524640 533384 597495 637328 666730 713729 796660 800076 955992 1000095 1066768 1194990 1274656 1333460 1427458 1593320 1600152 1911984 2000190 2133536 2141187 2389980 2666920 2854916 3186640 3200304 3568645 3823968 4000380 4282374 4779960 5333840 5709832 6373280 6400608 7137290 8000760 8564748 9559920 10667680 10705935 11419664 14274580 16001520 17129496 19119840 21411870 22839328 28549160 32003040 34258992 42823740 43537469 57098320 68517984 85647480 87074938 114196640 130612407 171294960 174149876 217687345 261224814 342589920 348299752 435374690 522449628 653062035 696599504 870749380 1044899256 1306124070 1393199008 1741498760 2089798512 2612248140 3482997520 4179597024 5224496280 6965995040 10448992560 20897985120
• Sum of all divisors σ(n): 67071582144
• Sum of proper divisors (its aliquot sum) s(n): 46173597024
• 20897985120 is an abundant number, because the sum of its proper divisors (46173597024) is greater than itself. Its abundance is 25275611904

Bases of 20897985120

• Binary: 10011011101100111011111001001100000₂
• Hexadecimal: 0x4DD9DF260
• Base-36: 9LM4CIO

Squares and roots of 20897985120

• 20897985120 squared (20897985120²) is 436725782075741414400
• 20897985120 cubed (20897985120³) is 9126688895339206791098953728000
• The square root of 20897985120 is 144561.3541718533
• The cube root of 20897985120 is 2754.4494414237

Scales and comparisons

• 20,897,985,120 seconds is equal to 664 years, 25 weeks, 3 days, 19 hours, 52 minutes.
• To count from 1 to 20,897,985,120 would take you about one thousand, three hundred twenty-eight 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 20897985120 cubic inches would be around 229.5 feet tall.

Recreational maths with 20897985120

• 20897985120 backwards is 02158979802
• The number of decimal digits it has is: 11
• The sum of 20897985120's digits is 51
• More coming soon!