40640630985

Names of 40640630985

• Cardinal: 40640630985 can be written as Forty billion, six hundred forty million, six hundred thirty thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 4.0640630985 × 10¹⁰

Factors of 40640630985

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1202

Divisors of 40640630985

• Number of divisors d(n): 84
• Complete list of divisors:
  1 3 5 9 15 27 45 81 101 135 243 303 405 505 729 909 1093 1215 1515 2727 3279 3645 4545 5465 8181 9837 10201 13635 16395 24543 29511 30603 40905 49185 51005 73629 88533 91809 110393 122715 147555 153015 265599 275427 331179 368145 442665 459045 551965 796797 826281 993537 1327995 1377135 1655895 2478843 2980611 3983985 4131405 4967685 7436529 8941833 11149693 12394215 14903055 26825499 33449079 37182645 44709165 55748465 80476497 100347237 134127495 167245395 301041711 402382485 501736185 903125133 1505208555 2709375399 4515625665 8128126197 13546876995 40640630985
• Sum of all divisors σ(n): 73918378956
• Sum of proper divisors (its aliquot sum) s(n): 33277747971
• 40640630985 is a deficient number, because the sum of its proper divisors (33277747971) is less than itself. Its deficiency is 7362883014

Bases of 40640630985

• Binary: 100101110110010111101101000011001001₂
• Hexadecimal: 0x9765ED0C9
• Base-36: IO4DRK9

Squares and roots of 40640630985

• 40640630985 squared (40640630985²) is 1651660886858942070225
• 40640630985 cubed (40640630985³) is 67124540615192100423506180921625
• The square root of 40640630985 is 201595.2156798371
• The cube root of 40640630985 is 3438.1130071677

Scales and comparisons

• 40,640,630,985 seconds is equal to 1,292 years, 12 weeks, 5 days, 16 hours, 9 minutes, 45 seconds.
• To count from 1 to 40,640,630,985 would take you about two thousand, five hundred eighty-four 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 40640630985 cubic inches would be around 286.5 feet tall.

Recreational maths with 40640630985

• 40640630985 backwards is 58903604604
• 40640630985 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 40640630985's digits is 45
• More coming soon!