19980878720

Names of 19980878720

• Cardinal: 19980878720 can be written as Nineteen billion, nine hundred eighty million, eight hundred seventy-eight thousand, seven hundred twenty.

Scientific notation

• Scientific notation: 1.998087872 × 10¹⁰

Factors of 19980878720

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3412

Divisors of 19980878720

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 4 5 8 10 11 16 20 22 32 40 44 55 64 80 88 110 128 160 176 220 320 352 440 640 704 880 1408 1493 1760 1901 2986 3520 3802 5972 7040 7465 7604 9505 11944 14930 15208 16423 19010 20911 23888 29860 30416 32846 38020 41822 47776 59720 60832 65692 76040 82115 83644 95552 104555 119440 121664 131384 152080 164230 167288 191104 209110 238880 243328 262768 304160 328460 334576 418220 477760 525536 608320 656920 669152 836440 955520 1051072 1216640 1313840 1338304 1672880 2102144 2627680 2676608 2838193 3345760 5255360 5676386 6691520 10510720 11352772 13383040 14190965 22705544 28381930 31220123 45411088 56763860 62440246 90822176 113527720 124880492 156100615 181644352 227055440 249760984 312201230 363288704 454110880 499521968 624402460 908221760 999043936 1248804920 1816443520 1998087872 2497609840 3996175744 4995219680 9990439360 19980878720
• Sum of all divisors σ(n): 52171555680
• Sum of proper divisors (its aliquot sum) s(n): 32190676960
• 19980878720 is an abundant number, because the sum of its proper divisors (32190676960) is greater than itself. Its abundance is 12209798240

Bases of 19980878720

• Binary: 10010100110111101000000001110000000₂
• Hexadecimal: 0x4A6F40380
• Base-36: 96G3KOW

Squares and roots of 19980878720

• 19980878720 squared (19980878720²) is 399235514423348838400
• 19980878720 cubed (19980878720³) is 7977076394409743876323278848000
• The square root of 19980878720 is 141353.7361373941
• The cube root of 19980878720 is 2713.5522884451

Scales and comparisons

• 19,980,878,720 seconds is equal to 635 years, 17 weeks, 1 day, 4 hours, 5 minutes, 20 seconds.
• To count from 1 to 19,980,878,720 would take you about one thousand, two hundred seventy 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 19980878720 cubic inches would be around 226.1 feet tall.

Recreational maths with 19980878720

• 19980878720 backwards is 02787808991
• The number of decimal digits it has is: 11
• The sum of 19980878720's digits is 59
• More coming soon!