21128293393168429

Names of 21128293393168429

• Cardinal: 21128293393168429 can be written as Twenty-one quadrillion, one hundred twenty-eight trillion, two hundred ninety-three billion, three hundred ninety-three million, one hundred sixty-eight thousand, four hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1128293393168429 × 10¹⁶

Factors of 21128293393168429

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 924

Divisors of 21128293393168429

• Number of divisors d(n): 96
• Complete list of divisors:
  1 13 17 41 169 221 289 533 697 853 2873 3757 4913 6929 9061 11089 11849 14501 34973 48841 63869 117793 144157 154037 188513 201433 246517 454649 594541 727609 830297 2002481 2450669 2618629 3204721 4190789 5910437 7729033 9458917 10107197 12369353 29831969 34042177 41661373 54480257 100477429 122965921 131393561 160801589 171822349 210279001 387815597 507143473 620650477 708243341 1708116293 2090420657 2233690537 2733627013 3574743017 5041602761 6592865149 8068456201 8621439041 10551058109 25446669557 29037976981 35537151169 46471659221 85707246937 104889930613 112078707533 137163755417 146564463697 179367987853 330806704241 432593382469 604131569873 1457023197929 1783128820421 1905338028061 2331783842089 3049255793501 4300487155133 5623713972097 7354087501973 24769394364793 30313189947157 39640325315513 73108281637261 95603137525649 125019487533541 515324229101669 1242840787833437 1625253337936033 21128293393168429
• Sum of all divisors σ(n): 24930294741424800
• Sum of proper divisors (its aliquot sum) s(n): 3802001348256371
• 21128293393168429 is a deficient number, because the sum of its proper divisors (3802001348256371) is less than itself. Its deficiency is 17326292044912058

Bases of 21128293393168429

• Binary: 1001011000100000001001000100110011010001111100000101101₂
• Hexadecimal: 0x4B10122668F82D
• Base-36: 5S1CRZLX831

Squares and roots of 21128293393168429

• 21128293393168429 squared (21128293393168429²) is 446404781707804687104807562328041
• 21128293393168429 cubed (21128293393168429³) is 9431771200035804538069201753316359991848462617589
• The square root of 21128293393168429 is 145355747.7128731535
• The cube root of 21128293393168429 is 276453.1055620897

Scales and comparisons

• 21,128,293,393,168,429 seconds is equal to 671,814,375 years, 41 weeks, 4 days, 7 hours, 13 minutes, 49 seconds.
• To count from 1 to 21,128,293,393,168,429 would take you about two billion, fifteen million, four hundred forty-three thousand, one hundred twenty-seven 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 21128293393168429 cubic inches would be around 23037.8 feet tall.

Recreational maths with 21128293393168429

• 21128293393168429 backwards is 92486139339282112
• The number of decimal digits it has is: 17
• The sum of 21128293393168429's digits is 73
• More coming soon!