21901491516840

Names of 21901491516840

• Cardinal: 21901491516840 can be written as Twenty-one trillion, nine hundred one billion, four hundred ninety-one million, five hundred sixteen thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.190149151684 × 10¹³

Factors of 21901491516840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1079955226

Divisors of 21901491516840

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 169 195 260 312 338 390 507 520 676 780 845 1014 1352 1560 1690 2028 2535 3380 4056 5070 6760 10140 20280 1079955203 2159910406 3239865609 4319820812 5399776015 6479731218 8639641624 10799552030 12959462436 14039417639 16199328045 21599104060 25918924872 28078835278 32398656090 42118252917 43198208120 56157670556 64797312180 70197088195 84236505834 112315341112 129594624360 140394176390 168473011668 182512429307 210591264585 280788352780 336946023336 365024858614 421182529170 547537287921 561576705560 730049717228 842365058340 912562146535 1095074575842 1460099434456 1684730116680 1825124293070 2190149151684 2737686439605 3650248586140 4380298303368 5475372879210 7300497172280 10950745758420 21901491516840
• Sum of all divisors σ(n): 71147448839520
• Sum of proper divisors (its aliquot sum) s(n): 49245957322680
• 21901491516840 is an abundant number, because the sum of its proper divisors (49245957322680) is greater than itself. Its abundance is 27344465805840

Bases of 21901491516840

• Binary: 100111110101101010110100111110011010110101000₂
• Hexadecimal: 0x13EB569F35A8
• Base-36: 7RHEMKHWO

Squares and roots of 21901491516840

• 21901491516840 squared (21901491516840²) is 479675330662214484003585600
• 21901491516840 cubed (21901491516840³) is 10505605185335912460933107898542781504000
• The square root of 21901491516840 is 4679902.9388268299
• The cube root of 21901491516840 is 27978.5088136031

Scales and comparisons

• 21,901,491,516,840 seconds is equal to 696,399 years, 35 weeks, 4 days, 3 hours, 34 minutes.
• To count from 1 to 21,901,491,516,840 would take you about one million, seven hundred forty thousand, nine hundred ninety-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 21901491516840 cubic inches would be around 2331.5 feet tall.

Recreational maths with 21901491516840

• 21901491516840 backwards is 04861519410912
• The number of decimal digits it has is: 14
• The sum of 21901491516840's digits is 51
• More coming soon!