400259940921

Names of 400259940921

• Cardinal: 400259940921 can be written as Four hundred billion, two hundred fifty-nine million, nine hundred forty thousand, nine hundred twenty-one.

Scientific notation

• Scientific notation: 4.00259940921 × 10¹¹

Factors of 400259940921

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 252

Divisors of 400259940921

• Number of divisors d(n): 81
• Complete list of divisors:
  1 3 9 23 53 69 159 173 207 477 519 529 1219 1557 1587 2809 3657 3979 4761 8427 9169 10971 11937 25281 27507 28037 29929 35811 64607 82521 84111 89787 91517 193821 210887 252333 269361 274551 485957 581463 632661 688367 823653 1457871 1485961 1586237 1897983 2065101 4373613 4457883 4758711 4850401 6195303 11177011 13373649 14276133 14551203 15832441 33531033 36483451 43653609 47497323 84070561 100593099 109450353 142491969 252211683 257071253 328351059 756635049 771213759 839119373 1933622903 2313641277 2517358119 5800868709 7552074357 17402606127 44473326769 133419980307 400259940921
• Sum of all divisors σ(n): 619583167021
• Sum of proper divisors (its aliquot sum) s(n): 219323226100
• 400259940921 is a deficient number, because the sum of its proper divisors (219323226100) is less than itself. Its deficiency is 180936714821

Bases of 400259940921

• Binary: 101110100110001010110100000001000111001₂
• Hexadecimal: 0x5D315A0239
• Base-36: 53VKFN09

Squares and roots of 400259940921

• 400259940921 squared (400259940921²) is 160208020306082410328241
• 400259940921 cubed (400259940921³) is 64124852742782913894939022877849961
• 400259940921 is a perfect square number. Its square root is 632661
• The cube root of 400259940921 is 7369.6587025743

Scales and comparisons

• 400,259,940,921 seconds is equal to 12,727 years, 1 week, 3 days, 4 hours, 55 minutes, 21 seconds.
• To count from 1 to 400,259,940,921 would take you about twenty-five thousand, four hundred fifty-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 400259940921 cubic inches would be around 614.1 feet tall.

Recreational maths with 400259940921

• 400259940921 backwards is 129049952004
• The number of decimal digits it has is: 12
• The sum of 400259940921's digits is 45
• More coming soon!