1998031437

Names of 1998031437

• Cardinal: 1998031437 can be written as One billion, nine hundred ninety-eight million, thirty-one thousand, four hundred thirty-seven.

Scientific notation

• Scientific notation: 1.998031437 × 10⁹

Factors of 1998031437

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 285

Divisors of 1998031437

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 9 17 31 51 93 107 127 153 279 321 381 527 961 963 1143 1581 1819 2159 2883 3317 3937 4743 5457 6477 8649 9951 11811 13589 16337 16371 19431 29853 35433 40767 49011 56389 66929 102827 122047 122301 147033 169167 200787 231013 308481 366141 421259 507501 602361 693039 925443 1098423 1263777 1748059 2074799 2079117 3791331 5244177 6224397 7161403 13059029 15732531 18673191 21484209 39177087 64452627 117531261 222003493 666010479 1998031437
• Sum of all divisors σ(n): 3212172288
• Sum of proper divisors (its aliquot sum) s(n): 1214140851
• 1998031437 is a deficient number, because the sum of its proper divisors (1214140851) is less than itself. Its deficiency is 783890586

Bases of 1998031437

• Binary: 1110111000101111000101001001101₂
• Hexadecimal: 0x77178A4D
• Base-36: X1KQX9

Squares and roots of 1998031437

• 1998031437 squared (1998031437²) is 3992129623240284969
• 1998031437 cubed (1998031437³) is 7976400487813055172900570453
• The square root of 1998031437 is 44699.3449280861
• The cube root of 1998031437 is 1259.5075418687

Scales and comparisons

• 1,998,031,437 seconds is equal to 63 years, 27 weeks, 4 days, 8 hours, 43 minutes, 57 seconds.
• To count from 1 to 1,998,031,437 would take you about one hundred twenty-seven 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 1998031437 cubic inches would be around 105 feet tall.

Recreational maths with 1998031437

• 1998031437 backwards is 7341308991
• The number of decimal digits it has is: 10
• The sum of 1998031437's digits is 45
• More coming soon!