21042069417451728

Names of 21042069417451728

• Cardinal: 21042069417451728 can be written as Twenty-one quadrillion, forty-two trillion, sixty-nine billion, four hundred seventeen million, four hundred fifty-one thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1042069417451728 × 10¹⁶

Factors of 21042069417451728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 26583882

Divisors of 21042069417451728

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 36 48 54 72 108 144 216 432 683 1366 2049 2683 2732 4098 5366 5464 6147 8049 8196 10732 10928 12294 16098 16392 18441 21464 24147 24588 32196 32784 36882 42928 48294 49176 64392 72441 73764 96588 98352 128784 144882 147528 193176 289764 295056 386352 579528 1159056 1832489 3664978 5497467 7329956 10994934 14659912 16492401 21989868 26580511 29319824 32984802 43979736 49477203 53161022 65969604 79741533 87959472 98954406 106322044 131939208 159483066 197908812 212644088 239224599 263878416 318966132 395817624 425288176 478449198 637932264 717673797 791635248 956898396 1275864528 1435347594 1913796792 2870695188 3827593584 5741390376 11482780752 18154489013 36308978026 54463467039 71315511013 72617956052 108926934078 142631022026 145235912104 163390401117 213946533039 217853868156 285262044052 290471824208 326780802234 427893066078 435707736312 490171203351 570524088104 641839599117 653561604468 855786132156 871415472624 980342406702 1141048176208 1283679198234 1307123208936 1711572264312 1925518797351 1960684813404 2567358396468 2614246417872 3423144528624 3851037594702 3921369626808 5134716792936 7702075189404 7842739253616 10269433585872 15404150378808 30808300757616 48708494021879 97416988043758 146125482065637 194833976087516 292250964131274 389667952175032 438376446196911 584501928262548 779335904350064 876752892393822 1169003856525096 1315129338590733 1753505784787644 2338007713050192 2630258677181466 3507011569575288 5260517354362932 7014023139150576 10521034708725864 21042069417451728
• Sum of all divisors σ(n): 60509510623457280
• Sum of proper divisors (its aliquot sum) s(n): 39467441206005552
• 21042069417451728 is an abundant number, because the sum of its proper divisors (39467441206005552) is greater than itself. Its abundance is 18425371788553824

Bases of 21042069417451728

• Binary: 1001010110000011010011010010000111101110110000011010000₂
• Hexadecimal: 0x4AC1A690F760D0
• Base-36: 5R6SH8P0NO0

Squares and roots of 21042069417451728

• 21042069417451728 squared (21042069417451728²) is 442768685368857303756409210185984
• 21042069417451728 cubed (21042069417451728³) is 9316769413405338648314120631502894028150222180352
• The square root of 21042069417451728 is 145058848.1184506303
• The cube root of 21042069417451728 is 276076.5270247687

Scales and comparisons

• 21,042,069,417,451,728 seconds is equal to 669,072,720 years, 4 weeks, 1 day, 9 hours, 28 minutes, 48 seconds.
• To count from 1 to 21,042,069,417,451,728 would take you about two billion, seven million, two hundred eighteen thousand, one hundred sixty 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 21042069417451728 cubic inches would be around 23006.4 feet tall.

Recreational maths with 21042069417451728

• 21042069417451728 backwards is 82715471496024012
• The number of decimal digits it has is: 17
• The sum of 21042069417451728's digits is 63
• More coming soon!