1997377641

Names of 1997377641

• Cardinal: 1997377641 can be written as One billion, nine hundred ninety-seven million, three hundred seventy-seven thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 1.997377641 × 10⁹

Factors of 1997377641

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 2033

Divisors of 1997377641

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 19 21 49 57 63 127 133 147 171 381 399 441 889 931 1143 1197 1877 2413 2667 2793 5631 6223 7239 8001 8379 13139 16891 16893 18669 21717 35663 39417 50673 56007 91973 106989 118237 118251 152019 238379 249641 275919 320967 354711 715137 748923 827757 1064133 1668653 1747487 2145411 2246769 4529201 5005959 5242461 11680571 13587603 15017877 15727383 31704407 35041713 40762809 95113221 105125139 221930849 285339663 665792547 1997377641
• Sum of all divisors σ(n): 3562490880
• Sum of proper divisors (its aliquot sum) s(n): 1565113239
• 1997377641 is a deficient number, because the sum of its proper divisors (1565113239) is less than itself. Its deficiency is 432264402

Bases of 1997377641

• Binary: 1110111000011011001000001101001₂
• Hexadecimal: 0x770D9069
• Base-36: X16QG9

Squares and roots of 1997377641

• 1997377641 squared (1997377641²) is 3989517440766724881
• 1997377641 cubed (1997377641³) is 7968572934566998174107785721
• The square root of 1997377641 is 44692.0310681895
• The cube root of 1997377641 is 1259.3701481635

Scales and comparisons

• 1,997,377,641 seconds is equal to 63 years, 26 weeks, 3 days, 19 hours, 7 minutes, 21 seconds.
• To count from 1 to 1,997,377,641 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 1997377641 cubic inches would be around 104.9 feet tall.

Recreational maths with 1997377641

• 1997377641 backwards is 1467737991
• The number of decimal digits it has is: 10
• The sum of 1997377641's digits is 54
• More coming soon!