18312599872

Names of 18312599872

• Cardinal: 18312599872 can be written as Eighteen billion, three hundred twelve million, five hundred ninety-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.8312599872 × 10¹⁰

Factors of 18312599872

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 119182

Divisors of 18312599872

• Number of divisors d(n): 70
• Complete list of divisors:
  1 2 4 7 8 14 16 28 32 49 56 64 98 112 196 224 343 392 448 686 784 1372 1568 2401 2744 3136 4802 5488 9604 10976 19208 21952 38416 76832 119173 153664 238346 476692 834211 953384 1668422 1906768 3336844 3813536 5839477 6673688 7627072 11678954 13347376 23357908 26694752 40876339 46715816 53389504 81752678 93431632 163505356 186863264 286134373 327010712 373726528 572268746 654021424 1144537492 1308042848 2289074984 2616085696 4578149968 9156299936 18312599872
• Sum of all divisors σ(n): 42393409498
• Sum of proper divisors (its aliquot sum) s(n): 24080809626
• 18312599872 is an abundant number, because the sum of its proper divisors (24080809626) is greater than itself. Its abundance is 5768209754

Bases of 18312599872

• Binary: 10001000011100001000001100101000000₂
• Hexadecimal: 0x443841940
• Base-36: 8EUUKHS

Squares and roots of 18312599872

• 18312599872 squared (18312599872²) is 335351314071974416384
• 18312599872 cubed (18312599872³) is 6141154431149470496260913102848
• The square root of 18312599872 is 135324.0550382673
• The cube root of 18312599872 is 2635.8255821801

Scales and comparisons

• 18,312,599,872 seconds is equal to 582 years, 14 weeks, 5 days, 9 hours, 17 minutes, 52 seconds.
• To count from 1 to 18,312,599,872 would take you about one thousand, one hundred sixty-four 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 18312599872 cubic inches would be around 219.7 feet tall.

Recreational maths with 18312599872

• 18312599872 backwards is 27899521381
• The number of decimal digits it has is: 11
• The sum of 18312599872's digits is 55
• More coming soon!