21071108903880910

Names of 21071108903880910

• Cardinal: 21071108903880910 can be written as Twenty-one quadrillion, seventy-one trillion, one hundred eight billion, nine hundred three million, eight hundred eighty thousand, nine hundred ten.

Scientific notation

• Scientific notation: 2.107110890388091 × 10¹⁶

Factors of 21071108903880910

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1932574522

Divisors of 21071108903880910

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 14 29 35 41 58 70 82 131 145 203 205 262 287 290 406 410 574 655 917 1015 1189 1310 1435 1834 2030 2378 2870 3799 4585 5371 5945 7598 8323 9170 10742 11890 16646 18995 26593 26855 37597 37990 41615 53186 53710 75194 83230 132965 155759 187985 265930 311518 375970 778795 1090313 1557590 2180626 5451565 10903130 1932574307 3865148614 9662871535 13528020149 19325743070 27056040298 56044654903 67640100745 79235546587 112089309806 135280201490 158471093174 253167234217 280223274515 392312584321 396177732935 506334468434 554648826109 560446549030 784625168642 792355465870 1109297652218 1265836171085 1772170639519 1961562921605 2297830851023 2531672342170 2773244130545 3544341279038 3923125843210 4595661702046 5546488261090 7341849792293 8860853197595 10379856602897 11489154255115 14683699584586 16084815957161 17721706395190 20759713205794 22978308510230 32169631914322 36709248961465 51392948546051 51899283014485 72658996220279 73418497922930 80424079785805 102785897092102 103798566028970 145317992440558 160848159571610 256964742730255 301015841484013 363294981101395 513929485460510 602031682968026 726589962202790 1505079207420065 2107110890388091 3010158414840130 4214221780776182 10535554451940455 21071108903880910
• Sum of all divisors σ(n): 46285309282544640
• Sum of proper divisors (its aliquot sum) s(n): 25214200378663730
• 21071108903880910 is an abundant number, because the sum of its proper divisors (25214200378663730) is greater than itself. Its abundance is 4143091474782820

Bases of 21071108903880910

• Binary: 1001010110111000000111111011001001111010100100011001110₂
• Hexadecimal: 0x4ADC0FD93D48CE
• Base-36: 5RH31SPGLAM

Squares and roots of 21071108903880910

• 21071108903880910 squared (21071108903880910²) is 443991630439209364497259462428100
• 21071108903880910 cubed (21071108903880910³) is 9355395997396226907709379899149012740421837571000
• The square root of 21071108903880910 is 145158909.1440167513
• The cube root of 21071108903880910 is 276203.4701051423

Scales and comparisons

• 21,071,108,903,880,910 seconds is equal to 669,996,085 years, 48 weeks, 9 hours, 35 minutes, 10 seconds.
• To count from 1 to 21,071,108,903,880,910 would take you about two billion, nine million, nine hundred eighty-eight thousand, two hundred fifty-seven 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 21071108903880910 cubic inches would be around 23017 feet tall.

Recreational maths with 21071108903880910

• 21071108903880910 backwards is 01908830980117012
• 21071108903880910 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21071108903880910's digits is 58
• More coming soon!