640142876478732472

Names of 640142876478732472

• Cardinal: 640142876478732472 can be written as Six hundred forty quadrillion, one hundred forty-two trillion, eight hundred seventy-six billion, four hundred seventy-eight million, seven hundred thirty-two thousand, four hundred seventy-two.

Scientific notation

• Scientific notation: 6.40142876478732472 × 10¹⁷

Factors of 640142876478732472

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 5978

Divisors of 640142876478732472

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 8 73 146 292 584 5329 5903 10658 11806 21316 23612 42632 47224 389017 430919 778034 861838 1556068 1723676 3112136 3447352 31457087 34845409 62914174 69690818 125828348 139381636 251656696 278763272 2296367351 2543714857 4592734702 5087429714 9185469404 10174859428 18370938808 20349718856 185691184561 371382369122 742764738244 1485529476488 13555456472953 27110912945906 54221825891812 108443651783624
• Sum of all divisors σ(n): 640240623650050748
• Sum of proper divisors (its aliquot sum) s(n): 97747171318276
• 640142876478732472 is a deficient number, because the sum of its proper divisors (97747171318276) is less than itself. Its deficiency is 640045129307414196

Bases of 640142876478732472

• Binary: 100011100010001111101000110111110110000000101111100010111000₂
• Hexadecimal: 0x8E23E8DF602F8B8
• Base-36: 4V33PLO05NZS

Squares and roots of 640142876478732472

• 640142876478732472 squared (640142876478732472²) is 409782902306465739150523723747230784
• 640142876478732472 cubed (640142876478732472³) is 262319605814264393459790898312619213469651680378818048
• The square root of 640142876478732472 is 800089292.8159534319
• 640142876478732472 is a perfect cube number. Its cube root is 861838

Scales and comparisons

• 640,142,876,478,732,472 seconds is equal to 20,354,563,380 years, 5 weeks, 16 hours, 47 minutes, 52 seconds.
• To count from 1 to 640,142,876,478,732,472 would take you about sixty-one billion, sixty-three million, six hundred ninety thousand, one hundred forty 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 640142876478732472 cubic inches would be around 71819.8 feet tall.

Recreational maths with 640142876478732472

• 640142876478732472 backwards is 274237874678241046
• The number of decimal digits it has is: 18
• The sum of 640142876478732472's digits is 82
• More coming soon!