9938942738820

Names of 9938942738820

• Cardinal: 9938942738820 can be written as Nine trillion, nine hundred thirty-eight billion, nine hundred forty-two million, seven hundred thirty-eight thousand, eight hundred twenty.

Scientific notation

• Scientific notation: 9.93894273882 × 10¹²

Factors of 9938942738820

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 13299696

Divisors of 9938942738820

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 4153 8306 12459 16612 20765 24918 37377 41530 49836 62295 74754 83060 124590 149508 186885 249180 373770 747540 13295533 26591066 39886599 53182132 66477665 79773198 119659797 132955330 159546396 199432995 239319594 265910660 398865990 478639188 598298985 797731980 1196597970 2393195940 55216348549 110432697098 165649045647 220865394196 276081742745 331298091294 496947136941 552163485490 662596182588 828245228235 993894273882 1104326970980 1656490456470 1987788547764 2484735684705 3312980912940 4969471369410 9938942738820
• Sum of all divisors σ(n): 30155387936856
• Sum of proper divisors (its aliquot sum) s(n): 20216445198036
• 9938942738820 is an abundant number, because the sum of its proper divisors (20216445198036) is greater than itself. Its abundance is 10277502459216

Bases of 9938942738820

• Binary: 10010000101000010111001001101100000110000100₂
• Hexadecimal: 0x90A1726C184
• Base-36: 3ITVXW2H0

Squares and roots of 9938942738820

• 9938942738820 squared (9938942738820²) is 98782582765542802734992400
• 9938942738820 cubed (9938942738820³) is 981794433699477313738864350707884968000
• The square root of 9938942738820 is 3152608.8781864457
• The cube root of 9938942738820 is 21500.4093946345

Scales and comparisons

• 9,938,942,738,820 seconds is equal to 316,027 years, 33 weeks, 11 hours, 27 minutes.
• To count from 1 to 9,938,942,738,820 would take you about seven hundred ninety thousand and sixty-nine 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 9938942738820 cubic inches would be around 1791.7 feet tall.

Recreational maths with 9938942738820

• 9938942738820 backwards is 0288372498399
• The number of decimal digits it has is: 13
• The sum of 9938942738820's digits is 72
• More coming soon!