218909964309512220

Names of 218909964309512220

• Cardinal: 218909964309512220 can be written as Two hundred eighteen quadrillion, nine hundred nine trillion, nine hundred sixty-four billion, three hundred nine million, five hundred twelve thousand, two hundred twenty.

Scientific notation

• Scientific notation: 2.1890996430951222 × 10¹⁷

Factors of 218909964309512220

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 405388822795403

Divisors of 218909964309512220

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 90 108 135 180 270 540 405388822795393 810777645590786 1216166468386179 1621555291181572 2026944113976965 2432332936772358 3648499405158537 4053888227953930 4864665873544716 6080832341930895 7296998810317074 8107776455907860 10945498215475611 12161664683861790 14593997620634148 18242497025792685 21890996430951222 24323329367723580 36484994051585370 43781992861902444 54727491077378055 72969988103170740 109454982154756110 218909964309512220
• Sum of all divisors σ(n): 681053222296261920
• Sum of proper divisors (its aliquot sum) s(n): 462143257986749700
• 218909964309512220 is an abundant number, because the sum of its proper divisors (462143257986749700) is greater than itself. Its abundance is 243233293677237480

Bases of 218909964309512220

• Binary: 1100001001101110010111001111100100011101100100000000011100₂
• Hexadecimal: 0x309B973E476401C
• Base-36: 1NVH3T9Y3KF0

Squares and roots of 218909964309512220

• 218909964309512220 squared (218909964309512220²) is 47921572473991913971317974329328400
• 218909964309512220 cubed (218909964309512220³) is 10490509719937273106068444348297846748751044193048000
• The square root of 218909964309512220 is 467878151.1350067519
• The cube root of 218909964309512220 is 602682.4013979839

Scales and comparisons

• 218,909,964,309,512,220 seconds is equal to 6,960,659,732 years, 3 weeks, 2 days, 4 hours, 57 minutes.
• To count from 1 to 218,909,964,309,512,220 would take you about twenty billion, eight hundred eighty-one million, nine hundred seventy-nine thousand, one hundred ninety-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 218909964309512220 cubic inches would be around 50223.5 feet tall.

Recreational maths with 218909964309512220

• 218909964309512220 backwards is 022215903469909812
• The number of decimal digits it has is: 18
• The sum of 218909964309512220's digits is 72
• More coming soon!