40839963921

Names of 40839963921

• Cardinal: 40839963921 can be written as Forty billion, eight hundred thirty-nine million, nine hundred sixty-three thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 4.0839963921 × 10¹⁰

Factors of 40839963921

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 128

Divisors of 40839963921

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 9 31 41 53 93 123 159 279 369 477 961 1271 1643 1681 2173 2809 2883 3813 4929 5043 6519 8427 8649 11439 14787 15129 19557 25281 39401 50933 52111 67363 87079 89093 115169 118203 152799 156333 202089 261237 267279 345507 354609 458397 468999 606267 783711 801837 1036521 1615441 2088253 2699449 2761883 3570239 4721929 4846323 6264759 8098347 8285649 10710717 14165787 14538969 18794277 24295041 24856947 32132151 42497361 85618373 110677409 146379799 256855119 332032227 439139397 770565357 996096681 1317418191 4537773769 13613321307 40839963921
• Sum of all divisors σ(n): 63679438641
• Sum of proper divisors (its aliquot sum) s(n): 22839474720
• 40839963921 is a deficient number, because the sum of its proper divisors (22839474720) is less than itself. Its deficiency is 18000489201

Bases of 40839963921

• Binary: 100110000010010000000110010100010001₂
• Hexadecimal: 0x982406511
• Base-36: IRF25U9

Squares and roots of 40839963921

• 40839963921 squared (40839963921²) is 1667902653068581694241
• 40839963921 cubed (40839963921³) is 68117084175061056331443493478961
• 40839963921 is a perfect square number. Its square root is 202089
• The cube root of 40839963921 is 3443.7248929911

Scales and comparisons

• 40,839,963,921 seconds is equal to 1,298 years, 30 weeks, 2 days, 18 hours, 25 minutes, 21 seconds.
• To count from 1 to 40,839,963,921 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 40839963921 cubic inches would be around 287 feet tall.

Recreational maths with 40839963921

• 40839963921 backwards is 12936993804
• The number of decimal digits it has is: 11
• The sum of 40839963921's digits is 54
• More coming soon!