21643104912

Names of 21643104912

• Cardinal: 21643104912 can be written as Twenty-one billion, six hundred forty-three million, one hundred four thousand, nine hundred twelve.

Scientific notation

• Scientific notation: 2.1643104912 × 10¹⁰

Factors of 21643104912

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 12555

Divisors of 21643104912

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 11 12 13 16 22 24 26 33 39 44 48 52 66 78 88 104 132 143 156 176 208 257 264 286 312 429 514 528 572 624 771 858 1028 1144 1542 1716 2056 2288 2827 3084 3341 3432 4112 5654 6168 6682 6864 8481 10023 11308 12269 12336 13364 16962 20046 22616 24538 26728 33924 36751 36807 40092 45232 49076 53456 67848 73502 73614 80184 98152 110253 134959 135696 147004 147228 159497 160368 196304 220506 269918 294008 294456 318994 404877 441012 478491 539836 588016 588912 637988 809754 882024 956982 1079672 1275976 1619508 1754467 1764048 1913964 2159344 2551952 3153133 3239016 3508934 3827928 5263401 6306266 6478032 7017868 7655856 9459399 10526802 12612532 14035736 18918798 21053604 25225064 28071472 34684463 37837596 40990729 42107208 50450128 69368926 75675192 81981458 84214416 104053389 122972187 138737852 151350384 163962916 208106778 245944374 277475704 327925832 416213556 450898019 491888748 554951408 655851664 832427112 901796038 983777496 1352694057 1664854224 1803592076 1967554992 2705388114 3607184152 5410776228 7214368304 10821552456 21643104912
• Sum of all divisors σ(n): 65947029120
• Sum of proper divisors (its aliquot sum) s(n): 44303924208
• 21643104912 is an abundant number, because the sum of its proper divisors (44303924208) is greater than itself. Its abundance is 22660819296

Bases of 21643104912

• Binary: 10100001010000001111001001010010000₂
• Hexadecimal: 0x50A079290
• Base-36: 9XXQUMO

Squares and roots of 21643104912

• 21643104912 squared (21643104912²) is 468423990231838527744
• 21643104912 cubed (21643104912³) is 10138149563885344458607014678528
• The square root of 21643104912 is 147115.9573669695
• The cube root of 21643104912 is 2786.8046180905

Scales and comparisons

• 21,643,104,912 seconds is equal to 688 years, 9 weeks, 3 days, 21 hours, 35 minutes, 12 seconds.
• To count from 1 to 21,643,104,912 would take you about one thousand, three hundred seventy-six 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 21643104912 cubic inches would be around 232.2 feet tall.

Recreational maths with 21643104912

• 21643104912 backwards is 21940134612
• 21643104912 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 21643104912's digits is 33
• More coming soon!