640024000225

Names of 640024000225

• Cardinal: 640024000225 can be written as Six hundred forty billion, twenty-four million, two hundred twenty-five.

Scientific notation

• Scientific notation: 6.40024000225 × 10¹¹

Factors of 640024000225

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 109

Divisors of 640024000225

• Number of divisors d(n): 45
• Complete list of divisors:
  1 5 25 43 61 215 305 1075 1525 1849 2623 3721 9245 13115 18605 46225 65575 93025 112789 160003 226981 563945 800015 1134905 2819725 4000075 5674525 6880129 9760183 13845841 34400645 48800915 69229205 172003225 244004575 346146025 419687869 595371163 2098439345 2976855815 10492196725 14884279075 25600960009 128004800045 640024000225
• Sum of all divisors σ(n): 826057411215
• Sum of proper divisors (its aliquot sum) s(n): 186033410990
• 640024000225 is a deficient number, because the sum of its proper divisors (186033410990) is less than itself. Its deficiency is 453990589235

Bases of 640024000225

• Binary: 1001010100000100011001110011011011100001₂
• Hexadecimal: 0x95046736E1
• Base-36: 860TRJ6P

Squares and roots of 640024000225

• 640024000225 squared (640024000225²) is 409630720864010800050625
• 640024000225 cubed (640024000225³) is 262173492582434560486003645011390625
• 640024000225 is a perfect square number. Its square root is 800015
• The cube root of 640024000225 is 8617.8464815255

Scales and comparisons

• 640,024,000,225 seconds is equal to 20,350 years, 40 weeks, 5 days, 4 hours, 30 minutes, 25 seconds.
• To count from 1 to 640,024,000,225 would take you about forty thousand, seven hundred one 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 640024000225 cubic inches would be around 718.2 feet tall.

Recreational maths with 640024000225

• 640024000225 backwards is 522000420046
• 640024000225 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 640024000225's digits is 25
• More coming soon!