18888842940

Names of 18888842940

• Cardinal: 18888842940 can be written as Eighteen billion, eight hundred eighty-eight million, eight hundred forty-two thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.888884294 × 10¹⁰

Factors of 18888842940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1634

Divisors of 18888842940

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 121 132 165 220 242 330 363 484 605 660 726 1210 1452 1613 1815 2420 3226 3630 4839 6452 7260 8065 9678 16130 17743 19356 24195 32260 35486 48390 53229 70972 88715 96780 106458 177430 195173 212916 266145 354860 390346 532290 585519 780692 975865 1064580 1171038 1951730 2342076 2601769 2927595 3903460 5203538 5855190 7805307 10407076 11710380 13008845 15610614 26017690 28619459 31221228 39026535 52035380 57238918 78053070 85858377 114477836 143097295 156106140 171716754 286194590 314814049 343433508 429291885 572389180 629628098 858583770 944442147 1259256196 1574070245 1717167540 1888884294 3148140490 3777768588 4722210735 6296280980 9444421470 18888842940
• Sum of all divisors σ(n): 58169989752
• Sum of proper divisors (its aliquot sum) s(n): 39281146812
• 18888842940 is an abundant number, because the sum of its proper divisors (39281146812) is greater than itself. Its abundance is 20392303872

Bases of 18888842940

• Binary: 10001100101110111001101111010111100₂
• Hexadecimal: 0x465DCDEBC
• Base-36: 8ODXGHO

Squares and roots of 18888842940

• 18888842940 squared (18888842940²) is 356788387611987843600
• 18888842940 cubed (18888842940³) is 6739319816418680038949684184000
• The square root of 18888842940 is 137436.6870235163
• The cube root of 18888842940 is 2663.1877540015

Scales and comparisons

• 18,888,842,940 seconds is equal to 600 years, 31 weeks, 3 days, 20 hours, 49 minutes.
• To count from 1 to 18,888,842,940 would take you about one thousand, two hundred one 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 18888842940 cubic inches would be around 221.9 feet tall.

Recreational maths with 18888842940

• 18888842940 backwards is 04924888881
• 18888842940 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 18888842940's digits is 60
• More coming soon!