669555520020

Names of 669555520020

• Cardinal: 669555520020 can be written as Six hundred sixty-nine billion, five hundred fifty-five million, five hundred twenty thousand and twenty.

Scientific notation

• Scientific notation: 6.6955552002 × 10¹¹

Factors of 669555520020

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 128267380

Divisors of 669555520020

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 116 145 174 180 261 290 348 435 522 580 870 1044 1305 1740 2610 5220 128267341 256534682 384802023 513069364 641336705 769604046 1154406069 1282673410 1539208092 1924010115 2308812138 2565346820 3719752889 3848020230 4617624276 5772030345 7439505778 7696040460 11159258667 11544060690 14879011556 18598764445 22318517334 23088121380 33477776001 37197528890 44637034668 55796293335 66955552002 74395057780 111592586670 133911104004 167388880005 223185173340 334777760010 669555520020
• Sum of all divisors σ(n): 2101019061960
• Sum of proper divisors (its aliquot sum) s(n): 1431463541940
• 669555520020 is an abundant number, because the sum of its proper divisors (1431463541940) is greater than itself. Its abundance is 761908021920

Bases of 669555520020

• Binary: 1001101111100100100111100111001000010100₂
• Hexadecimal: 0x9BE49E7214
• Base-36: 8JL82HP0

Squares and roots of 669555520020

• 669555520020 squared (669555520020²) is 448304594389252620800400
• 669555520020 cubed (669555520020³) is 300164815823651212819159690624008000
• The square root of 669555520020 is 818263.7227813537
• The cube root of 669555520020 is 8748.4046942815

Scales and comparisons

• 669,555,520,020 seconds is equal to 21,289 years, 41 weeks, 2 days, 4 hours, 27 minutes.
• To count from 1 to 669,555,520,020 would take you about forty-two thousand, five hundred seventy-nine 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 669555520020 cubic inches would be around 729 feet tall.

Recreational maths with 669555520020

• 669555520020 backwards is 020025555966
• 669555520020 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 669555520020's digits is 45
• More coming soon!