40840420985

Names of 40840420985

• Cardinal: 40840420985 can be written as Forty billion, eight hundred forty million, four hundred twenty thousand, nine hundred eighty-five.

Scientific notation

• Scientific notation: 4.0840420985 × 10¹⁰

Factors of 40840420985

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1195

Divisors of 40840420985

• Number of divisors d(n): 128
• Complete list of divisors:
  1 5 7 13 17 31 35 65 85 91 119 155 181 217 221 403 455 527 595 905 941 1085 1105 1267 1547 2015 2353 2635 2821 3077 3689 4705 5611 6335 6587 6851 7735 11765 12233 14105 15385 15997 16471 18445 21539 28055 29171 32935 34255 39277 40001 47957 61165 72943 79985 82355 85631 95387 107695 111979 145855 170321 196385 200005 204197 207961 239785 280007 364715 379223 428155 476935 495907 510601 559895 667709 851605 1020985 1039805 1192247 1240031 1400035 1455727 1896115 2214173 2479535 2553005 2654561 2895457 3338545 3471349 5279951 5961235 6200155 6446791 7278635 8680217 11070865 13272805 14477285 15499211 17356745 20268199 26399755 32233955 36959657 37640941 43401085 45127537 68639363 77496055 89759167 101340995 184798285 188204705 225637685 263486587 343196815 448795835 480475541 628314169 1166869171 1317432935 2402377705 3141570845 5834345855 8168084197 40840420985
• Sum of all divisors σ(n): 66361171968
• Sum of proper divisors (its aliquot sum) s(n): 25520750983
• 40840420985 is a deficient number, because the sum of its proper divisors (25520750983) is less than itself. Its deficiency is 15319670002

Bases of 40840420985

• Binary: 100110000010010001110101111001111001₂
• Hexadecimal: 0x982475E79
• Base-36: IRFBYIH

Squares and roots of 40840420985

• 40840420985 squared (40840420985²) is 1667939986232028370225
• 40840420985 cubed (40840420985³) is 68119371215431142530452439171625
• The square root of 40840420985 is 202090.1308451257
• The cube root of 40840420985 is 3443.7377398583

Scales and comparisons

• 40,840,420,985 seconds is equal to 1,298 years, 31 weeks, 1 day, 1 hour, 23 minutes, 5 seconds.
• To count from 1 to 40,840,420,985 would take you about two thousand, five hundred ninety-seven 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 40840420985 cubic inches would be around 287 feet tall.

Recreational maths with 40840420985

• 40840420985 backwards is 58902404804
• The number of decimal digits it has is: 11
• The sum of 40840420985's digits is 44
• More coming soon!