21019075488

Names of 21019075488

• Cardinal: 21019075488 can be written as Twenty-one billion, nineteen million, seventy-five thousand, four hundred eighty-eight.

Scientific notation

• Scientific notation: 2.1019075488 × 10¹⁰

Factors of 21019075488

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 2424

Divisors of 21019075488

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 61 72 96 122 144 183 244 288 366 488 549 732 739 976 1098 1464 1478 1619 1952 2196 2217 2928 2956 3238 4392 4434 4857 5856 5912 6476 6651 8784 8868 9714 11824 12952 13302 14571 17568 17736 19428 23648 25904 26604 29142 35472 38856 45079 51808 53208 58284 70944 77712 90158 98759 106416 116568 135237 155424 180316 197518 212832 233136 270474 296277 360632 395036 405711 466272 540948 592554 721264 790072 811422 888831 1081896 1185108 1196441 1442528 1580144 1622844 1777662 2163792 2370216 2392882 3160288 3245688 3555324 3589323 4327584 4740432 4785764 6491376 7110648 7178646 9480864 9571528 10767969 12982752 14221296 14357292 19143056 21535938 28442592 28714584 38286112 43071876 57429168 72982901 86143752 114858336 145965802 172287504 218948703 291931604 344575008 437897406 583863208 656846109 875794812 1167726416 1313692218 1751589624 2335452832 2627384436 3503179248 5254768872 7006358496 10509537744 21019075488
• Sum of all divisors σ(n): 60872666400
• Sum of proper divisors (its aliquot sum) s(n): 39853590912
• 21019075488 is an abundant number, because the sum of its proper divisors (39853590912) is greater than itself. Its abundance is 18834515424

Bases of 21019075488

• Binary: 10011100100110101011010001110100000₂
• Hexadecimal: 0x4E4D5A3A0
• Base-36: 9NM7QG0

Squares and roots of 21019075488

• 21019075488 squared (21019075488²) is 441801534370242438144
• 21019075488 cubed (21019075488³) is 9286259801642352348209906614272
• The square root of 21019075488 is 144979.5692089061
• The cube root of 21019075488 is 2759.7592858747

Scales and comparisons

• 21,019,075,488 seconds is equal to 668 years, 17 weeks, 5 days, 8 hours, 4 minutes, 48 seconds.
• To count from 1 to 21,019,075,488 would take you about one thousand, three hundred thirty-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 21019075488 cubic inches would be around 230 feet tall.

Recreational maths with 21019075488

• 21019075488 backwards is 88457091012
• The number of decimal digits it has is: 11
• The sum of 21019075488's digits is 45
• More coming soon!