18091909374

Names of 18091909374

• Cardinal: 18091909374 can be written as Eighteen billion, ninety-one million, nine hundred nine thousand, three hundred seventy-four.

Scientific notation

• Scientific notation: 1.8091909374 × 10¹⁰

Factors of 18091909374

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 833261

Divisors of 18091909374

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 7 11 14 21 22 33 42 47 66 77 94 141 154 231 282 329 462 517 658 987 1034 1551 1974 3102 3619 7238 10857 21714 833191 1666382 2499573 4999146 5832337 9165101 11664674 17497011 18330202 27495303 34994022 39159977 54990606 64155707 78319954 117479931 128311414 192467121 234959862 274119839 384934242 430759747 548239678 822359517 861519494 1292279241 1644719034 2584558482 3015318229 6030636458 9045954687 18091909374
• Sum of all divisors σ(n): 46072184832
• Sum of proper divisors (its aliquot sum) s(n): 27980275458
• 18091909374 is an abundant number, because the sum of its proper divisors (27980275458) is greater than itself. Its abundance is 9888366084

Bases of 18091909374

• Binary: 10000110110010111001010000011111110₂
• Hexadecimal: 0x4365CA0FE
• Base-36: 8B7GEM6

Squares and roots of 18091909374

• 18091909374 squared (18091909374²) is 327317184797029071876
• 18091909374 cubed (18091909374³) is 5921792843900660552823924165624
• The square root of 18091909374 is 134506.1685351271
• The cube root of 18091909374 is 2625.1943922073

Scales and comparisons

• 18,091,909,374 seconds is equal to 575 years, 13 weeks, 6 days, 2 hours, 22 minutes, 54 seconds.
• To count from 1 to 18,091,909,374 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 18091909374 cubic inches would be around 218.8 feet tall.

Recreational maths with 18091909374

• 18091909374 backwards is 47390919081
• The number of decimal digits it has is: 11
• The sum of 18091909374's digits is 51
• More coming soon!