21489433020

Names of 21489433020

• Cardinal: 21489433020 can be written as Twenty-one billion, four hundred eighty-nine million, four hundred thirty-three thousand and twenty.

Scientific notation

• Scientific notation: 2.148943302 × 10¹⁰

Factors of 21489433020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 986680

Divisors of 21489433020

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 9 10 11 12 15 18 20 22 30 33 36 44 45 55 60 66 90 99 110 121 132 165 180 198 220 242 330 363 396 484 495 605 660 726 990 1089 1210 1452 1815 1980 2178 2420 3630 4356 5445 7260 10890 21780 986659 1973318 2959977 3946636 4933295 5919954 8879931 9866590 10853249 11839908 14799885 17759862 19733180 21706498 29599770 32559747 35519724 43412996 44399655 54266245 59199540 65119494 88799310 97679241 108532490 119385739 130238988 162798735 177598620 195358482 217064980 238771478 325597470 358157217 390716964 477542956 488396205 596928695 651194940 716314434 976792410 1074471651 1193857390 1432628868 1790786085 1953584820 2148943302 2387714780 3581572170 4297886604 5372358255 7163144340 10744716510 21489433020
• Sum of all divisors σ(n): 71649275880
• Sum of proper divisors (its aliquot sum) s(n): 50159842860
• 21489433020 is an abundant number, because the sum of its proper divisors (50159842860) is greater than itself. Its abundance is 28670409840

Bases of 21489433020

• Binary: 10100000000110111101011100110111100₂
• Hexadecimal: 0x500DEB9BC
• Base-36: 9VE94N0

Squares and roots of 21489433020

• 21489433020 squared (21489433020²) is 461795731521066320400
• 21489433020 cubed (21489433020³) is 9923728441443857411213659608000
• The square root of 21489433020 is 146592.7454548825
• The cube root of 21489433020 is 2780.1932572719

Scales and comparisons

• 21,489,433,020 seconds is equal to 683 years, 15 weeks, 3 days, 6 hours, 57 minutes.
• To count from 1 to 21,489,433,020 would take you about one thousand, three hundred sixty-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 21489433020 cubic inches would be around 231.7 feet tall.

Recreational maths with 21489433020

• 21489433020 backwards is 02033498412
• 21489433020 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21489433020's digits is 36
• More coming soon!