690639130728

Names of 690639130728

• Cardinal: 690639130728 can be written as Six hundred ninety billion, six hundred thirty-nine million, one hundred thirty thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 6.90639130728 × 10¹¹

Factors of 690639130728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3895349

Divisors of 690639130728

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 3 4 6 8 9 12 18 24 27 36 54 72 108 216 821 1642 2463 3284 4926 6568 7389 9852 14778 19704 22167 29556 44334 59112 88668 177336 3894523 7789046 11683569 15578092 23367138 31156184 35050707 46734276 70101414 93468552 105152121 140202828 210304242 280405656 420608484 841216968 3197403383 6394806766 9592210149 12789613532 19184420298 25579227064 28776630447 38368840596 57553260894 76737681192 86329891341 115106521788 172659782682 230213043576 345319565364 690639130728
• Sum of all divisors σ(n): 1920779236800
• Sum of proper divisors (its aliquot sum) s(n): 1230140106072
• 690639130728 is an abundant number, because the sum of its proper divisors (1230140106072) is greater than itself. Its abundance is 539500975344

Bases of 690639130728

• Binary: 1010000011001101010011001101000001101000₂
• Hexadecimal: 0xA0CD4CD068
• Base-36: 8T9WPFU0

Squares and roots of 690639130728

• 690639130728 squared (690639130728²) is 476982408892727473809984
• 690639130728 cubed (690639130728³) is 329422716250220759513130736007588352
• The square root of 690639130728 is 831047.0087353665
• The cube root of 690639130728 is 8839.2834448843

Scales and comparisons

• 690,639,130,728 seconds is equal to 21,960 years, 9 weeks, 5 days, 10 hours, 58 minutes, 48 seconds.
• To count from 1 to 690,639,130,728 would take you about forty-three thousand, nine hundred twenty 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 690639130728 cubic inches would be around 736.6 feet tall.

Recreational maths with 690639130728

• 690639130728 backwards is 827031936096
• 690639130728 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 690639130728's digits is 54
• More coming soon!