77968198640

Names of 77968198640

• Cardinal: 77968198640 can be written as Seventy-seven billion, nine hundred sixty-eight million, one hundred ninety-eight thousand, six hundred forty.

Scientific notation

• Scientific notation: 7.796819864 × 10¹⁰

Factors of 77968198640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 42374051

Divisors of 77968198640

• Number of divisors d(n): 40
• Complete list of divisors:
  1 2 4 5 8 10 16 20 23 40 46 80 92 115 184 230 368 460 920 1840 42374021 84748042 169496084 211870105 338992168 423740210 677984336 847480420 974602483 1694960840 1949204966 3389921680 3898409932 4873012415 7796819864 9746024830 15593639728 19492049660 38984099320 77968198640
• Sum of all divisors σ(n): 189157634208
• Sum of proper divisors (its aliquot sum) s(n): 111189435568
• 77968198640 is an abundant number, because the sum of its proper divisors (111189435568) is greater than itself. Its abundance is 33221236928

Bases of 77968198640

• Binary: 1001000100111010001000100101111110000₂
• Hexadecimal: 0x1227444BF0
• Base-36: ZTG933K

Squares and roots of 77968198640

• 77968198640 squared (77968198640²) is 6079039999166497849600
• 77968198640 cubed (77968198640³) is 473971798195518938770745644544000
• The square root of 77968198640 is 279227.8615038263
• The cube root of 77968198640 is 4272.0779345735

Scales and comparisons

• 77,968,198,640 seconds is equal to 2,479 years, 7 weeks, 4 days, 16 hours, 57 minutes, 20 seconds.
• To count from 1 to 77,968,198,640 would take you about four thousand, nine hundred fifty-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 77968198640 cubic inches would be around 356 feet tall.

Recreational maths with 77968198640

• 77968198640 backwards is 04689186977
• The number of decimal digits it has is: 11
• The sum of 77968198640's digits is 65
• More coming soon!