21028721714

Names of 21028721714

• Cardinal: 21028721714 can be written as Twenty-one billion, twenty-eight million, seven hundred twenty-one thousand, seven hundred fourteen.

Scientific notation

• Scientific notation: 2.1028721714 × 10¹⁰

Factors of 21028721714

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 716

Divisors of 21028721714

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 7 11 13 14 22 26 49 77 91 98 143 154 169 182 286 338 539 637 683 1001 1078 1183 1274 1366 1859 2002 2197 2366 3718 4394 4781 7007 7513 8281 8879 9562 13013 14014 15026 15379 16562 17758 24167 26026 28561 30758 33467 48334 52591 57122 62153 66934 91091 97669 105182 107653 115427 124306 169169 182182 195338 199927 215306 230854 314171 338338 368137 399854 435071 628342 683683 736274 807989 870142 1184183 1269697 1367366 1399489 1500551 1615978 2199197 2368366 2539394 2798978 3001102 4398394 4785781 5655923 8887879 9571562 10503857 11311846 15394379 16506061 17775758 19507163 21007714 30788758 33012122 39014326 62215153 73526999 115542427 124430306 136550141 147053998 214578793 231084854 273100282 429157586 808796989 955850987 1502051551 1617593978 1911701974 3004103102 10514360857 21028721714
• Sum of all divisors σ(n): 43427797488
• Sum of proper divisors (its aliquot sum) s(n): 22399075774
• 21028721714 is an abundant number, because the sum of its proper divisors (22399075774) is greater than itself. Its abundance is 1370354060

Bases of 21028721714

• Binary: 10011100101011010001101010000110010₂
• Hexadecimal: 0x4E568D432
• Base-36: 9NRYHIQ

Squares and roots of 21028721714

• 21028721714 squared (21028721714²) is 442207136924855097796
• 21028721714 cubed (21028721714³) is 9299050822337471581326338742344
• The square root of 21028721714 is 145012.8329286757
• The cube root of 21028721714 is 2760.1813975329

Scales and comparisons

• 21,028,721,714 seconds is equal to 668 years, 33 weeks, 4 days, 23 hours, 35 minutes, 14 seconds.
• To count from 1 to 21,028,721,714 would take you about one thousand, three hundred thirty-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 21028721714 cubic inches would be around 230 feet tall.

Recreational maths with 21028721714

• 21028721714 backwards is 41712782012
• The number of decimal digits it has is: 11
• The sum of 21028721714's digits is 35
• More coming soon!