21493474880

Names of 21493474880

• Cardinal: 21493474880 can be written as Twenty-one billion, four hundred ninety-three million, four hundred seventy-four thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 2.149347488 × 10¹⁰

Factors of 21493474880

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 19738

Divisors of 21493474880

• Number of divisors d(n): 112
• Complete list of divisors:
  1 2 4 5 8 10 16 19 20 32 38 40 64 76 80 95 152 160 181 190 304 320 362 380 608 724 760 905 1216 1448 1520 1810 2896 3040 3439 3620 5792 6080 6878 7240 11584 13756 14480 17195 19531 27512 28960 34390 39062 55024 57920 68780 78124 97655 110048 137560 156248 195310 220096 275120 312496 371089 390620 550240 624992 742178 781240 1100480 1249984 1484356 1562480 1855445 2968712 3124960 3535111 3710890 5937424 6249920 7070222 7421780 11874848 14140444 14843560 17675555 23749696 28280888 29687120 35351110 56561776 59374240 67167109 70702220 113123552 118748480 134334218 141404440 226247104 268668436 282808880 335835545 537336872 565617760 671671090 1074673744 1131235520 1343342180 2149347488 2686684360 4298694976 5373368720 10746737440 21493474880
• Sum of all divisors σ(n): 54175517760
• Sum of proper divisors (its aliquot sum) s(n): 32682042880
• 21493474880 is an abundant number, because the sum of its proper divisors (32682042880) is greater than itself. Its abundance is 11188568000

Bases of 21493474880

• Binary: 10100000001000111000110011001000000₂
• Hexadecimal: 0x5011C6640
• Base-36: 9VGNRCW

Squares and roots of 21493474880

• 21493474880 squared (21493474880²) is 461969462417191014400
• 21493474880 cubed (21493474880³) is 9929329035790999148168118272000
• The square root of 21493474880 is 146606.5308231527
• The cube root of 21493474880 is 2780.3675514237

Scales and comparisons

• 21,493,474,880 seconds is equal to 683 years, 22 weeks, 1 day, 1 hour, 41 minutes, 20 seconds.
• To count from 1 to 21,493,474,880 would take you about one thousand, three hundred sixty-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 21493474880 cubic inches would be around 231.7 feet tall.

Recreational maths with 21493474880

• 21493474880 backwards is 08847439412
• The number of decimal digits it has is: 11
• The sum of 21493474880's digits is 50
• More coming soon!