664378890384

Names of 664378890384

• Cardinal: 664378890384 can be written as Six hundred sixty-four billion, three hundred seventy-eight million, eight hundred ninety thousand, three hundred eighty-four.

Scientific notation

• Scientific notation: 6.64378890384 × 10¹¹

Factors of 664378890384

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 26772262

Divisors of 664378890384

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 3 4 6 8 11 12 16 22 24 33 44 47 48 66 88 94 132 141 176 188 264 282 376 517 528 564 752 1034 1128 1551 2068 2256 3102 4136 6204 8272 12408 24816 26772199 53544398 80316597 107088796 160633194 214177592 294494189 321266388 428355184 588988378 642532776 883482567 1177976756 1258293353 1285065552 1766965134 2355953512 2516586706 3533930268 3774880059 4711907024 5033173412 7067860536 7549760118 10066346824 13841226883 14135721072 15099520236 20132693648 27682453766 30199040472 41523680649 55364907532 60398080944 83047361298 110729815064 166094722596 221459630128 332189445192 664378890384
• Sum of all divisors σ(n): 1912177612800
• Sum of proper divisors (its aliquot sum) s(n): 1247798722416
• 664378890384 is an abundant number, because the sum of its proper divisors (1247798722416) is greater than itself. Its abundance is 583419832032

Bases of 664378890384

• Binary: 1001101010110000000100010101100010010000₂
• Hexadecimal: 0x9AB0115890
• Base-36: 8H7M1CPC

Squares and roots of 664378890384

• 664378890384 squared (664378890384²) is 441399309987875087667456
• 664378890384 cubed (664378890384³) is 293256383786007699238501140068143104
• The square root of 664378890384 is 815094.4058107625
• The cube root of 664378890384 is 8725.8004115533

Scales and comparisons

• 664,378,890,384 seconds is equal to 21,125 years, 10 weeks, 11 hours, 46 minutes, 24 seconds.
• To count from 1 to 664,378,890,384 would take you about forty-two thousand, two hundred fifty 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 664378890384 cubic inches would be around 727.2 feet tall.

Recreational maths with 664378890384

• 664378890384 backwards is 483098873466
• 664378890384 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 664378890384's digits is 66
• More coming soon!