18304638989

Names of 18304638989

• Cardinal: 18304638989 can be written as Eighteen billion, three hundred four million, six hundred thirty-eight thousand, nine hundred eighty-nine.

Scientific notation

• Scientific notation: 1.8304638989 × 10¹⁰

Factors of 18304638989

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 316

Divisors of 18304638989

• Number of divisors d(n): 96
• Complete list of divisors:
  1 7 13 49 61 67 79 89 91 427 469 553 623 637 793 871 1027 1157 2989 3283 3871 4087 4361 4819 5293 5429 5551 5963 6097 7031 7189 8099 28609 33733 37051 38003 38857 41741 42679 49217 50323 53131 56693 62647 68809 70577 77519 91403 200263 236131 259357 266021 292187 322873 344519 363743 371917 428891 438529 471077 481663 494039 542633 639821 2260111 2546201 2603419 3002237 3069703 3297539 3371641 3458273 3798431 4197349 4478747 4728659 5575583 6124001 15820777 17823407 21015659 23082773 28735697 29381443 33100613 39029081 42868007 201149879 205670101 231704291 273203567 300076049 373564061 1408049153 2614948427 18304638989
• Sum of all divisors σ(n): 24223449600
• Sum of proper divisors (its aliquot sum) s(n): 5918810611
• 18304638989 is a deficient number, because the sum of its proper divisors (5918810611) is less than itself. Its deficiency is 12385828378

Bases of 18304638989

• Binary: 10001000011000010101010000000001101₂
• Hexadecimal: 0x4430AA00D
• Base-36: 8EQ3XU5

Squares and roots of 18304638989

• 18304638989 squared (18304638989²) is 335059808517618942121
• 18304638989 cubed (18304638989³) is 6133148834638481981392990955669
• The square root of 18304638989 is 135294.6376949213
• The cube root of 18304638989 is 2635.4435767013

Scales and comparisons

• 18,304,638,989 seconds is equal to 582 years, 1 week, 4 days, 5 hours, 56 minutes, 29 seconds.
• To count from 1 to 18,304,638,989 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 18304638989 cubic inches would be around 219.6 feet tall.

Recreational maths with 18304638989

• 18304638989 backwards is 98983640381
• The number of decimal digits it has is: 11
• The sum of 18304638989's digits is 59
• More coming soon!