21020349108

Names of 21020349108

• Cardinal: 21020349108 can be written as Twenty-one billion, twenty million, three hundred forty-nine thousand, one hundred eight.

Scientific notation

• Scientific notation: 2.1020349108 × 10¹⁰

Factors of 21020349108

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 32446

Divisors of 21020349108

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 11 12 17 22 33 34 44 51 66 68 102 132 187 204 289 374 561 578 748 867 1122 1156 1734 2244 3179 3468 4913 6358 9537 9826 12716 14739 19074 19652 29478 32413 38148 54043 58956 64826 97239 108086 129652 162129 194478 216172 324258 356543 388956 551021 648516 713086 1069629 1102042 1426172 1653063 2139258 2204084 3306126 4278516 6061231 6612252 9367357 12122462 18183693 18734714 24244924 28102071 36367386 37469428 56204142 72734772 103040927 112408284 159245069 206081854 309122781 318490138 412163708 477735207 618245562 636980276 955470414 1236491124 1751695759 1910940828 3503391518 5255087277 7006783036 10510174554 21020349108
• Sum of all divisors σ(n): 56851562880
• Sum of proper divisors (its aliquot sum) s(n): 35831213772
• 21020349108 is an abundant number, because the sum of its proper divisors (35831213772) is greater than itself. Its abundance is 14810864664

Bases of 21020349108

• Binary: 10011100100111010010001001010110100₂
• Hexadecimal: 0x4E4E912B4
• Base-36: 9NMZ16C

Squares and roots of 21020349108

• 21020349108 squared (21020349108²) is 441855076622196395664
• 21020349108 cubed (21020349108³) is 9287947965740657658596577467712
• The square root of 21020349108 is 144983.9615543733
• The cube root of 21020349108 is 2759.8150259357

Scales and comparisons

• 21,020,349,108 seconds is equal to 668 years, 19 weeks, 6 days, 1 hour, 51 minutes, 48 seconds.
• To count from 1 to 21,020,349,108 would take you about one thousand, three hundred thirty-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 21020349108 cubic inches would be around 230 feet tall.

Recreational maths with 21020349108

• 21020349108 backwards is 80194302012
• The number of decimal digits it has is: 11
• The sum of 21020349108's digits is 30
• More coming soon!