18007841808

Names of 18007841808

• Cardinal: 18007841808 can be written as Eighteen billion, seven million, eight hundred forty-one thousand, eight hundred eight.

Scientific notation

• Scientific notation: 1.8007841808 × 10¹⁰

Factors of 18007841808

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3789545

Divisors of 18007841808

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 33 36 44 48 54 66 72 88 99 108 132 144 176 198 216 264 297 396 432 528 594 792 1188 1584 2376 4752 3789529 7579058 11368587 15158116 22737174 30316232 34105761 41684819 45474348 60632464 68211522 83369638 90948696 102317283 125054457 136423044 166739276 181897392 204634566 250108914 272846088 333478552 375163371 409269132 500217828 545692176 666957104 750326742 818538264 1000435656 1125490113 1500653484 1637076528 2000871312 2250980226 3001306968 4501960452 6002613936 9003920904 18007841808
• Sum of all divisors σ(n): 56388206400
• Sum of proper divisors (its aliquot sum) s(n): 38380364592
• 18007841808 is an abundant number, because the sum of its proper divisors (38380364592) is greater than itself. Its abundance is 20372522784

Bases of 18007841808

• Binary: 10000110001010110011101110000010000₂
• Hexadecimal: 0x43159DC10
• Base-36: 89TEJO0

Squares and roots of 18007841808

• 18007841808 squared (18007841808²) is 324282366581952708864
• 18007841808 cubed (18007841808³) is 5839625558531670048959991386112
• The square root of 18007841808 is 134193.3001606265
• The cube root of 18007841808 is 2621.1219195257

Scales and comparisons

• 18,007,841,808 seconds is equal to 572 years, 30 weeks, 6 days, 2 hours, 16 minutes, 48 seconds.
• To count from 1 to 18,007,841,808 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 18007841808 cubic inches would be around 218.4 feet tall.

Recreational maths with 18007841808

• 18007841808 backwards is 80814870081
• The number of decimal digits it has is: 11
• The sum of 18007841808's digits is 45
• More coming soon!