18007138080

Names of 18007138080

• Cardinal: 18007138080 can be written as Eighteen billion, seven million, one hundred thirty-eight thousand and eighty.

Scientific notation

• Scientific notation: 1.800713808 × 10¹⁰

Factors of 18007138080

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 4168329

Divisors of 18007138080

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 4168319 8336638 12504957 16673276 20841595 25009914 33346552 37514871 41683190 50019828 62524785 66693104 75029742 83366380 100039656 112544613 125049570 133386208 150059484 166732760 187574355 200079312 225089226 250099140 300118968 333465520 375148710 400158624 450178452 500198280 562723065 600237936 666931040 750297420 900356904 1000396560 1125446130 1200475872 1500594840 1800713808 2000793120 2250892260 3001189680 3601427616 4501784520 6002379360 9003569040 18007138080
• Sum of all divisors σ(n): 63024998400
• Sum of proper divisors (its aliquot sum) s(n): 45017860320
• 18007138080 is an abundant number, because the sum of its proper divisors (45017860320) is greater than itself. Its abundance is 27010722240

Bases of 18007138080

• Binary: 10000110001010011110001111100100000₂
• Hexadecimal: 0x4314F1F20
• Base-36: 89SZGO0

Squares and roots of 18007138080

• 18007138080 squared (18007138080²) is 324257021832186086400
• 18007138080 cubed (18007138080³) is 5838940965541749446059610112000
• The square root of 18007138080 is 134190.6780666973
• The cube root of 18007138080 is 2621.0877754951

Scales and comparisons

• 18,007,138,080 seconds is equal to 572 years, 29 weeks, 4 days, 22 hours, 48 minutes.
• To count from 1 to 18,007,138,080 would take you about one thousand, one hundred forty-five 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 18007138080 cubic inches would be around 218.4 feet tall.

Recreational maths with 18007138080

• 18007138080 backwards is 08083170081
• 18007138080 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18007138080's digits is 36
• More coming soon!