64790145

Names of 64790145

• Cardinal: 64790145 can be written as Sixty-four million, seven hundred ninety thousand, one hundred forty-five.

Scientific notation

• Scientific notation: 6.4790145 × 10⁷

Factors of 64790145

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 178

Divisors of 64790145

• Number of divisors d(n): 128
• Complete list of divisors:
  1 3 5 7 9 15 17 21 27 35 37 45 51 63 85 105 109 111 119 135 153 185 189 255 259 315 327 333 357 459 545 555 595 629 763 765 777 945 981 999 1071 1295 1635 1665 1785 1853 1887 2289 2295 2331 2943 3145 3213 3815 3885 4033 4403 4905 4995 5355 5559 5661 6867 6993 9265 9435 11445 11655 12099 12971 13209 14715 16065 16677 16983 20165 20601 22015 27795 28231 28305 34335 34965 36297 38913 39627 50031 60495 64855 66045 68561 83385 84693 84915 103005 108891 116739 118881 141155 181485 194565 198135 205683 250155 254079 342805 350217 423465 479927 544455 583695 594405 617049 762237 1028415 1270395 1439781 1751085 1851147 2399635 3085245 3811185 4319343 7198905 9255735 12958029 21596715 64790145
• Sum of all divisors σ(n): 144460800
• Sum of proper divisors (its aliquot sum) s(n): 79670655
• 64790145 is an abundant number, because the sum of its proper divisors (79670655) is greater than itself. Its abundance is 14880510

Bases of 64790145

• Binary: 11110111001001111010000001₂
• Hexadecimal: 0x3DC9E81
• Base-36: 12KOE9

Squares and roots of 64790145

• 64790145 squared (64790145²) is 4197762889121025
• 64790145 cubed (64790145³) is 271973666261770132298625
• The square root of 64790145 is 8049.2325721151
• The cube root of 64790145 is 401.6394070981

Scales and comparisons

• 64,790,145 seconds is equal to 2 years, 3 weeks, 21 hours, 15 minutes, 45 seconds.
• To count from 1 to 64,790,145 would take you about three 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 64790145 cubic inches would be around 33.5 feet tall.

Recreational maths with 64790145

• 64790145 backwards is 54109746
• The number of decimal digits it has is: 8
• The sum of 64790145's digits is 36
• More coming soon!