1997538479216

Names of 1997538479216

• Cardinal: 1997538479216 can be written as One trillion, nine hundred ninety-seven billion, five hundred thirty-eight million, four hundred seventy-nine thousand, two hundred sixteen.

Scientific notation

• Scientific notation: 1.997538479216 × 10¹²

Factors of 1997538479216

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 575327943

Divisors of 1997538479216

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 7 8 14 16 28 31 56 62 112 124 217 248 434 496 868 1736 3472 575327903 1150655806 2301311612 4027295321 4602623224 8054590642 9205246448 16109181284 17835164993 32218362568 35670329986 64436725136 71340659972 124846154951 142681319944 249692309902 285362639888 499384619804 998769239608 1997538479216
• Sum of all divisors σ(n): 4565802246144
• Sum of proper divisors (its aliquot sum) s(n): 2568263766928
• 1997538479216 is an abundant number, because the sum of its proper divisors (2568263766928) is greater than itself. Its abundance is 570725287712

Bases of 1997538479216

• Binary: 11101000100010110100100100100110001110000₂
• Hexadecimal: 0x1D116924C70
• Base-36: PHNMU2Y8

Squares and roots of 1997538479216

• 1997538479216 squared (1997538479216²) is 3990159975948570063974656
• 1997538479216 cubed (1997538479216³) is 7970498090184857782621758174606749696
• The square root of 1997538479216 is 1413343.0154127485
• The cube root of 1997538479216 is 12594.0395072001

Scales and comparisons

• 1,997,538,479,216 seconds is equal to 63,515 years, 28 weeks, 2 days, 7 hours, 46 minutes, 56 seconds.
• To count from 1 to 1,997,538,479,216 would take you about one hundred fifty-eight thousand, seven hundred eighty-eight 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 1997538479216 cubic inches would be around 1049.5 feet tall.

Recreational maths with 1997538479216

• 1997538479216 backwards is 6129748357991
• The number of decimal digits it has is: 13
• The sum of 1997538479216's digits is 71
• More coming soon!