21043565829

Names of 21043565829

• Cardinal: 21043565829 can be written as Twenty-one billion, forty-three million, five hundred sixty-five thousand, eight hundred twenty-nine.

Scientific notation

• Scientific notation: 2.1043565829 × 10¹⁰

Factors of 21043565829

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 196

Divisors of 21043565829

• Number of divisors d(n): 240
• Complete list of divisors:
  1 3 9 11 13 27 29 33 39 61 79 81 87 99 117 143 169 183 237 261 297 319 351 377 429 507 549 671 711 783 793 869 891 957 1027 1053 1131 1287 1521 1647 1769 1859 2013 2133 2291 2349 2379 2607 2871 3081 3393 3861 4147 4563 4819 4901 4941 5307 5577 6039 6399 6873 7137 7821 8613 8723 9243 10179 10309 11297 11583 12441 13351 13689 14457 14703 15921 16731 18117 19459 20619 21411 22997 23463 25201 25839 26169 27729 29783 30537 30927 33891 37323 40053 43371 44109 47763 50193 53009 53911 54351 58377 61857 62647 64233 68991 70389 75603 78507 83187 89349 92781 101673 111969 113399 120159 130113 132327 139751 143289 146861 150579 159027 161733 175131 185571 187941 206973 226809 235521 252967 268047 278343 298961 305019 327613 335907 340197 360477 387179 390339 396981 419253 440583 477081 485199 525393 563823 620919 680427 689117 706563 758901 804141 814411 835029 896883 915057 982839 1020591 1081431 1161537 1257759 1321749 1431243 1455597 1537261 1576179 1691469 1816763 1862757 2041281 2067351 2276703 2412423 2443233 2690649 2948517 3061773 3288571 3484611 3773277 3965247 4258969 4293729 4366791 4611783 5074407 5450289 6202053 6830109 7329699 8071947 8845551 8958521 9185319 9865713 10453833 11319831 11895741 12776907 13835349 16350867 18606159 19984393 20490327 21989097 23617919 24215841 26536653 26875563 29597139 31361499 38330721 41506047 49052601 55818477 59953179 65967291 70853757 80626689 88791417 114992163 124518141 147157803 179859537 212561271 241880067 259797109 266374251 344976489 539578611 637683813 725640201 779391327 1618735833 1913051439 2338173981 7014521943 21043565829
• Sum of all divisors σ(n): 39538540800
• Sum of proper divisors (its aliquot sum) s(n): 18494974971
• 21043565829 is a deficient number, because the sum of its proper divisors (18494974971) is less than itself. Its deficiency is 2548590858

Bases of 21043565829

• Binary: 10011100110010010110101010100000101₂
• Hexadecimal: 0x4E64B5505
• Base-36: 9O0SNB9

Squares and roots of 21043565829

• 21043565829 squared (21043565829²) is 442831662799456457241
• 21043565829 cubed (21043565829³) is 9318757247285892383370107217789
• The square root of 21043565829 is 145064.0059732255
• The cube root of 21043565829 is 2760.8307128463

Scales and comparisons

• 21,043,565,829 seconds is equal to 669 years, 6 weeks, 1 day, 18 hours, 57 minutes, 9 seconds.
• To count from 1 to 21,043,565,829 would take you about one thousand, three hundred thirty-eight 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 21043565829 cubic inches would be around 230.1 feet tall.

Recreational maths with 21043565829

• 21043565829 backwards is 92856534012
• The number of decimal digits it has is: 11
• The sum of 21043565829's digits is 45
• More coming soon!