18008642418

Names of 18008642418

• Cardinal: 18008642418 can be written as Eighteen billion, eight million, six hundred forty-two thousand, four hundred eighteen.

Scientific notation

• Scientific notation: 1.8008642418 × 10¹⁰

Factors of 18008642418

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 34499

Divisors of 18008642418

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 6 13 26 39 53 78 106 127 159 254 318 381 689 762 1378 1651 2067 3302 4134 4953 6731 9906 13462 20193 34301 40386 68602 87503 102903 175006 205806 262509 445913 525018 891826 1337739 1817953 2675478 3635906 4356227 5453859 8712454 10907718 13068681 23633389 26137362 47266778 56630951 70900167 113261902 141800334 169892853 230880031 339785706 461760062 692640093 1385280186 3001440403 6002880806 9004321209 18008642418
• Sum of all divisors σ(n): 39832031232
• Sum of proper divisors (its aliquot sum) s(n): 21823388814
• 18008642418 is an abundant number, because the sum of its proper divisors (21823388814) is greater than itself. Its abundance is 3814746396

Bases of 18008642418

• Binary: 10000110001011001100001001101110010₂
• Hexadecimal: 0x431661372
• Base-36: 89TVPF6

Squares and roots of 18008642418

• 18008642418 squared (18008642418²) is 324311201739388886724
• 18008642418 cubed (18008642418³) is 5840404464276514086855623458632
• The square root of 18008642418 is 134196.2831750565
• The cube root of 18008642418 is 2621.1607630723

Scales and comparisons

• 18,008,642,418 seconds is equal to 572 years, 32 weeks, 1 day, 8 hours, 40 minutes, 18 seconds.
• To count from 1 to 18,008,642,418 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 18008642418 cubic inches would be around 218.4 feet tall.

Recreational maths with 18008642418

• 18008642418 backwards is 81424680081
• The number of decimal digits it has is: 11
• The sum of 18008642418's digits is 42
• More coming soon!