18186120568

Names of 18186120568

• Cardinal: 18186120568 can be written as Eighteen billion, one hundred eighty-six million, one hundred twenty thousand, five hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8186120568 × 10¹⁰

Factors of 18186120568

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 49744

Divisors of 18186120568

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 601 616 1202 2404 4207 4808 6611 8414 13222 16828 26444 33656 46277 49123 52888 92554 98246 185108 196492 343861 370216 392984 540353 687722 1080706 1375444 2161412 2750888 3782471 4322824 7564942 15129884 29522923 30259768 59045846 118091692 206660461 236183384 324752153 413320922 649504306 826641844 1299008612 1653283688 2273265071 2598017224 4546530142 9093060284 18186120568
• Sum of all divisors σ(n): 42584613120
• Sum of proper divisors (its aliquot sum) s(n): 24398492552
• 18186120568 is an abundant number, because the sum of its proper divisors (24398492552) is greater than itself. Its abundance is 6212371984

Bases of 18186120568

• Binary: 10000111011111110100010110101111000₂
• Hexadecimal: 0x43BFA2D78
• Base-36: 8CRJOFS

Squares and roots of 18186120568

• 18186120568 squared (18186120568²) is 330734981313832642624
• 18186120568 cubed (18186120568³) is 6014786246228587484934119890432
• The square root of 18186120568 is 134855.9252239219
• The cube root of 18186120568 is 2629.7432880847

Scales and comparisons

• 18,186,120,568 seconds is equal to 578 years, 13 weeks, 4 days, 12 hours, 9 minutes, 28 seconds.
• To count from 1 to 18,186,120,568 would take you about one thousand, one hundred fifty-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 18186120568 cubic inches would be around 219.1 feet tall.

Recreational maths with 18186120568

• 18186120568 backwards is 86502168181
• The number of decimal digits it has is: 11
• The sum of 18186120568's digits is 46
• More coming soon!