21018841150367840

Names of 21018841150367840

• Cardinal: 21018841150367840 can be written as Twenty-one quadrillion, eighteen trillion, eight hundred forty-one billion, one hundred fifty million, three hundred sixty-seven thousand, eight hundred forty.

Scientific notation

• Scientific notation: 2.101884115036784 × 10¹⁶

Factors of 21018841150367840

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 235004932424

Divisors of 21018841150367840

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 4 5 8 10 13 16 20 26 32 40 43 52 65 80 86 104 130 160 172 208 215 260 344 416 430 520 559 688 860 1040 1118 1376 1720 2080 2236 2795 3440 4472 5590 6880 8944 11180 17888 22360 44720 89440 235004932361 470009864722 940019729444 1175024661805 1880039458888 2350049323610 3055064120693 3760078917776 4700098647220 6110128241386 7520157835552 9400197294440 10105212091523 12220256482772 15275320603465 18800394588880 20210424183046 24440512965544 30550641206930 37600789177760 40420848366092 48881025931088 50526060457615 61101282413860 80841696732184 97762051862176 101052120915230 122202564827720 131367757189799 161683393464368 202104241830460 244405129655440 262735514379598 323366786928736 404208483660920 488810259310880 525471028759196 656838785948995 808416967321840 1050942057518392 1313677571897990 1616833934643680 2101884115036784 2627355143795980 4203768230073568 5254710287591960 10509420575183920 21018841150367840
• Sum of all divisors σ(n): 54720428490626976
• Sum of proper divisors (its aliquot sum) s(n): 33701587340259136
• 21018841150367840 is an abundant number, because the sum of its proper divisors (33701587340259136) is greater than itself. Its abundance is 12682746189891296

Bases of 21018841150367840

• Binary: 1001010101011001000011001010000010110111010100001100000₂
• Hexadecimal: 0x4AAC86505BA860
• Base-36: 5QYK2BMJ68W

Squares and roots of 21018841150367840

• 21018841150367840 squared (21018841150367840²) is 441791683304396463557367306265600
• 21018841150367840 cubed (21018841150367840³) is 9285949212928725016920756517754988099376738304000
• The square root of 21018841150367840 is 144978761.0319795775
• The cube root of 21018841150367840 is 275974.9029828263

Scales and comparisons

• 21,018,841,150,367,840 seconds is equal to 668,334,133 years, 1 week, 6 days, 13 hours, 17 minutes, 20 seconds.
• To count from 1 to 21,018,841,150,367,840 would take you about two billion, five million, two thousand, three 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 21018841150367840 cubic inches would be around 22997.9 feet tall.

Recreational maths with 21018841150367840

• 21018841150367840 backwards is 04876305114881012
• The number of decimal digits it has is: 17
• The sum of 21018841150367840's digits is 59
• More coming soon!