19491878912

Names of 19491878912

• Cardinal: 19491878912 can be written as Nineteen billion, four hundred ninety-one million, eight hundred seventy-eight thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 1.9491878912 × 10¹⁰

Factors of 19491878912

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 3259

Divisors of 19491878912

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 8 11 16 22 32 44 64 88 128 176 256 293 352 512 586 704 1024 1172 1408 2048 2344 2816 2953 3223 4688 5632 5906 6446 9376 11264 11812 12892 18752 22528 23624 25784 32483 37504 47248 51568 64966 75008 94496 103136 129932 150016 188992 206272 259864 300032 377984 412544 519728 600064 755968 825088 865229 1039456 1511936 1650176 1730458 2078912 3023872 3300352 3460916 4157824 6047744 6600704 6921832 8315648 9517519 13843664 16631296 19035038 27687328 33262592 38070076 55374656 66525184 76140152 110749312 152280304 221498624 304560608 442997248 609121216 885994496 1218242432 1771988992 2436484864 4872969728 9745939456 19491878912
• Sum of all divisors σ(n): 42676910640
• Sum of proper divisors (its aliquot sum) s(n): 23185031728
• 19491878912 is an abundant number, because the sum of its proper divisors (23185031728) is greater than itself. Its abundance is 3693152816

Bases of 19491878912

• Binary: 10010001001110011100111100000000000₂
• Hexadecimal: 0x489CE7800
• Base-36: 8YCYM0W

Squares and roots of 19491878912

• 19491878912 squared (19491878912²) is 379933343520070303744
• 19491878912 cubed (19491878912³) is 7405614726524510202305108246528
• The square root of 19491878912 is 139613.3192499913
• The cube root of 19491878912 is 2691.2325999433

Scales and comparisons

• 19,491,878,912 seconds is equal to 619 years, 40 weeks, 4 days, 10 hours, 48 minutes, 32 seconds.
• To count from 1 to 19,491,878,912 would take you about one thousand, two hundred thirty-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 19491878912 cubic inches would be around 224.3 feet tall.

Recreational maths with 19491878912

• 19491878912 backwards is 21987819491
• The number of decimal digits it has is: 11
• The sum of 19491878912's digits is 59
• More coming soon!