20687031840

Names of 20687031840

• Cardinal: 20687031840 can be written as Twenty billion, six hundred eighty-seven million, thirty-one thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.068703184 × 10¹⁰

Factors of 20687031840

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1491

Divisors of 20687031840

• Number of divisors d(n): 192
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 89 96 120 160 178 240 267 356 445 480 534 683 709 712 890 1068 1335 1366 1418 1424 1780 2049 2127 2136 2670 2732 2836 2848 3415 3545 3560 4098 4254 4272 5340 5464 5672 6830 7090 7120 8196 8508 8544 10245 10635 10680 10928 11344 13660 14180 14240 16392 17016 20490 21270 21360 21856 22688 27320 28360 32784 34032 40980 42540 42720 54640 56720 60787 63101 65568 68064 81960 85080 109280 113440 121574 126202 163920 170160 182361 189303 243148 252404 303935 315505 327840 340320 364722 378606 484247 486296 504808 607870 631010 729444 757212 911805 946515 968494 972592 1009616 1215740 1262020 1452741 1458888 1514424 1823610 1893030 1936988 1945184 2019232 2421235 2431480 2524040 2905482 2917776 3028848 3647220 3786060 3873976 4842470 4862960 5048080 5810964 5835552 6057696 7263705 7294440 7572120 7747952 9684940 9725920 10096160 11621928 14527410 14588880 15144240 15495904 19369880 23243856 29054820 29177760 30288480 38739760 43097983 46487712 58109640 77479520 86195966 116219280 129293949 172391932 215489915 232438560 258587898 344783864 430979830 517175796 646469745 689567728 861959660 1034351592 1292939490 1379135456 1723919320 2068703184 2585878980 3447838640 4137406368 5171757960 6895677280 10343515920 20687031840
• Sum of all divisors σ(n): 66085891200
• Sum of proper divisors (its aliquot sum) s(n): 45398859360
• 20687031840 is an abundant number, because the sum of its proper divisors (45398859360) is greater than itself. Its abundance is 24711827520

Bases of 20687031840

• Binary: 10011010001000010110000111000100000₂
• Hexadecimal: 0x4D10B0E20
• Base-36: 9I4IVXC

Squares and roots of 20687031840

• 20687031840 squared (20687031840²) is 427953286349173785600
• 20687031840 cubed (20687031840³) is 8853083260737995460400533504000
• The square root of 20687031840 is 143829.8711672927
• The cube root of 20687031840 is 2745.1498791757

Scales and comparisons

• 20,687,031,840 seconds is equal to 657 years, 40 weeks, 5 days, 5 hours, 44 minutes.
• To count from 1 to 20,687,031,840 would take you about one thousand, three hundred fifteen 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 20687031840 cubic inches would be around 228.8 feet tall.

Recreational maths with 20687031840

• 20687031840 backwards is 04813078602
• The number of decimal digits it has is: 11
• The sum of 20687031840's digits is 39
• More coming soon!