21059709723

Names of 21059709723

• Cardinal: 21059709723 can be written as Twenty-one billion, fifty-nine million, seven hundred nine thousand, seven hundred twenty-three.

Scientific notation

• Scientific notation: 2.1059709723 × 10¹⁰

Factors of 21059709723

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2715

Divisors of 21059709723

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 9 13 27 29 39 61 87 117 169 183 261 351 377 507 549 783 793 1131 1521 1647 1769 2379 2609 3393 4563 4901 5307 7137 7827 10179 10309 14703 15921 21411 22997 23481 30927 33917 44109 47763 68991 70443 75661 92781 101751 132327 159149 206973 226983 278343 298961 305253 440921 477447 620919 680949 896883 915759 983593 1322763 1432341 2042847 2068937 2690649 2950779 3968289 4297023 4615321 6206811 8071947 8852337 11904867 12786709 13845963 18620433 26557011 26896181 38360127 41537889 55861299 59999173 80688543 115080381 124613667 179997519 242065629 345241143 539992557 726196887 779989249 1619977671 2339967747 7019903241 21059709723
• Sum of all divisors σ(n): 35535672000
• Sum of proper divisors (its aliquot sum) s(n): 14475962277
• 21059709723 is a deficient number, because the sum of its proper divisors (14475962277) is less than itself. Its deficiency is 6583747446

Bases of 21059709723

• Binary: 10011100111010000011010101100011011₂
• Hexadecimal: 0x4E741AB1B
• Base-36: 9OAEO0R

Squares and roots of 21059709723

• 21059709723 squared (21059709723²) is 443511373617020736729
• 21059709723 cubed (21059709723³) is 9340220787223457287584344516067
• The square root of 21059709723 is 145119.6393428539
• The cube root of 21059709723 is 2761.5365369119

Scales and comparisons

• 21,059,709,723 seconds is equal to 669 years, 32 weeks, 6 days, 15 hours, 22 minutes, 3 seconds.
• To count from 1 to 21,059,709,723 would take you about one thousand, three 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 21059709723 cubic inches would be around 230.1 feet tall.

Recreational maths with 21059709723

• 21059709723 backwards is 32790795012
• The number of decimal digits it has is: 11
• The sum of 21059709723's digits is 45
• More coming soon!