19821637472

Names of 19821637472

• Cardinal: 19821637472 can be written as Nineteen billion, eight hundred twenty-one million, six hundred thirty-seven thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 1.9821637472 × 10¹⁰

Factors of 19821637472

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 2631

Divisors of 19821637472

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 364 416 728 1456 2609 2912 5218 10436 18263 20872 33917 36526 41744 67834 73052 83488 135668 146104 237419 271336 292208 474838 542672 584416 949676 1085344 1899352 3798704 6806881 7597408 13613762 27227524 47648167 54455048 88489453 95296334 108910096 176978906 190592668 217820192 353957812 381185336 619426171 707915624 762370672 1238852342 1415831248 1524741344 2477704684 2831662496 4955409368 9910818736 19821637472
• Sum of all divisors σ(n): 48047768496
• Sum of proper divisors (its aliquot sum) s(n): 28226131024
• 19821637472 is an abundant number, because the sum of its proper divisors (28226131024) is greater than itself. Its abundance is 8404493552

Bases of 19821637472

• Binary: 10010011101011101100010111101100000₂
• Hexadecimal: 0x49D762F60
• Base-36: 93TAHCW

Squares and roots of 19821637472

• 19821637472 squared (19821637472²) is 392897312071394550784
• 19821637472 cubed (19821637472³) is 7787868083602432167116741378048
• The square root of 19821637472 is 140789.3372098895
• The cube root of 19821637472 is 2706.3243366005

Scales and comparisons

• 19,821,637,472 seconds is equal to 630 years, 13 weeks, 6 days, 2 hours, 24 minutes, 32 seconds.
• To count from 1 to 19,821,637,472 would take you about one thousand, two hundred sixty 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 19821637472 cubic inches would be around 225.5 feet tall.

Recreational maths with 19821637472

• 19821637472 backwards is 27473612891
• The number of decimal digits it has is: 11
• The sum of 19821637472's digits is 50
• More coming soon!