18091299331

Names of 18091299331

• Cardinal: 18091299331 can be written as Eighteen billion, ninety-one million, two hundred ninety-nine thousand, three hundred thirty-one.

Scientific notation

• Scientific notation: 1.8091299331 × 10¹⁰

Factors of 18091299331

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 1032

Divisors of 18091299331

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 19 31 67 79 133 217 469 553 589 829 1273 1501 2077 2449 4123 5293 5803 8911 10507 14539 15751 17143 25699 37051 39463 46531 55543 65491 100567 110257 164083 179893 276241 325717 388801 458437 488281 703969 1055317 1148581 1244329 1721833 2030221 3117577 3417967 4387897 7387219 8710303 12052831 14211547 21823039 30715279 32714827 38574199 83370043 136024807 229003789 270019393 583590301 952173649 2584471333 18091299331
• Sum of all divisors σ(n): 23117824000
• Sum of proper divisors (its aliquot sum) s(n): 5026524669
• 18091299331 is a deficient number, because the sum of its proper divisors (5026524669) is less than itself. Its deficiency is 13064774662

Bases of 18091299331

• Binary: 10000110110010100110101001000000011₂
• Hexadecimal: 0x436535203
• Base-36: 8B73BWJ

Squares and roots of 18091299331

• 18091299331 squared (18091299331²) is 327295111483841047561
• 18091299331 cubed (18091299331³) is 5921193831427183961050658481691
• The square root of 18091299331 is 134503.9008021701
• The cube root of 18091299331 is 2625.1648854735

Scales and comparisons

• 18,091,299,331 seconds is equal to 575 years, 12 weeks, 6 days, 55 minutes, 31 seconds.
• To count from 1 to 18,091,299,331 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 18091299331 cubic inches would be around 218.8 feet tall.

Recreational maths with 18091299331

• 18091299331 backwards is 13399219081
• The number of decimal digits it has is: 11
• The sum of 18091299331's digits is 46
• More coming soon!