18085991880

Names of 18085991880

• Cardinal: 18085991880 can be written as Eighteen billion, eighty-five million, nine hundred ninety-one thousand, eight hundred eighty.

Scientific notation

• Scientific notation: 1.808599188 × 10¹⁰

Factors of 18085991880

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 193071

Divisors of 18085991880

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 4 5 6 8 10 11 12 15 20 22 24 30 33 40 44 55 60 66 71 88 110 120 132 142 165 213 220 264 284 330 355 426 440 568 660 710 781 852 1065 1320 1420 1562 1704 2130 2343 2840 3124 3905 4260 4686 6248 7810 8520 9372 11715 15620 18744 23430 31240 46860 93720 192979 385958 578937 771916 964895 1157874 1543832 1929790 2122769 2315748 2894685 3859580 4245538 4631496 5789370 6368307 7719160 8491076 10613845 11578740 12736614 13701509 16982152 21227690 23157480 25473228 27403018 31841535 41104527 42455380 50946456 54806036 63683070 68507545 82209054 84910760 109612072 127366140 137015090 150716599 164418108 205522635 254732280 274030180 301433198 328836216 411045270 452149797 548060360 602866396 753582995 822090540 904299594 1205732792 1507165990 1644181080 1808599188 2260748985 3014331980 3617198376 4521497970 6028663960 9042995940 18085991880
• Sum of all divisors σ(n): 60024499200
• Sum of proper divisors (its aliquot sum) s(n): 41938507320
• 18085991880 is an abundant number, because the sum of its proper divisors (41938507320) is greater than itself. Its abundance is 23852515440

Bases of 18085991880

• Binary: 10000110110000000100101010111001000₂
• Hexadecimal: 0x4360255C8
• Base-36: 8B3XKNC

Squares and roots of 18085991880

• 18085991880 squared (18085991880²) is 327103102283425934400
• 18085991880 cubed (18085991880³) is 5915984051820850908139812672000
• The square root of 18085991880 is 134484.1696260195
• The cube root of 18085991880 is 2624.9081451759

Scales and comparisons

• 18,085,991,880 seconds is equal to 575 years, 4 weeks, 14 hours, 38 minutes.
• To count from 1 to 18,085,991,880 would take you about one thousand, one hundred fifty 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 18085991880 cubic inches would be around 218.7 feet tall.

Recreational maths with 18085991880

• 18085991880 backwards is 08819958081
• The number of decimal digits it has is: 11
• The sum of 18085991880's digits is 57
• More coming soon!