6448749993

Names of 6448749993

• Cardinal: 6448749993 can be written as Six billion, four hundred forty-eight million, seven hundred forty-nine thousand, nine hundred ninety-three.

Scientific notation

• Scientific notation: 6.448749993 × 10⁹

Factors of 6448749993

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 452

Divisors of 6448749993

• Number of divisors d(n): 96
• Complete list of divisors:
  1 3 7 9 21 61 63 73 127 181 183 219 381 427 511 543 549 657 889 1143 1267 1281 1533 1629 2667 3801 3843 4453 4599 7747 8001 9271 11041 11403 13213 13359 22987 23241 27813 31171 33123 39639 40077 54229 64897 68961 69723 77287 83439 92491 93513 99369 118917 160909 162687 194691 206883 231861 277473 280539 482727 488061 565531 584073 695583 805993 832419 1402207 1448181 1678051 1696593 2417979 3958717 4206621 5034153 5089779 5641951 7253937 9815449 11746357 11876151 12619863 15102459 16925853 29446347 35239071 35628453 50777559 88339041 102361111 105717213 307083333 716527777 921249999 2149583331 6448749993
• Sum of all divisors σ(n): 11115732992
• Sum of proper divisors (its aliquot sum) s(n): 4666982999
• 6448749993 is a deficient number, because the sum of its proper divisors (4666982999) is less than itself. Its deficiency is 1781766994

Bases of 6448749993

• Binary: 110000000011000000001110110101001₂
• Hexadecimal: 0x180601DA9
• Base-36: 2YNF3C9

Squares and roots of 6448749993

• 6448749993 squared (6448749993²) is 41586376472217500049
• 6448749993 cubed (6448749993³) is 268180144984107968135466249657
• The square root of 6448749993 is 80304.1094403019
• The cube root of 6448749993 is 1861.3377273973

Scales and comparisons

• 6,448,749,993 seconds is equal to 205 years, 2 weeks, 4 days, 7 hours, 26 minutes, 33 seconds.
• To count from 1 to 6,448,749,993 would take you about four hundred ten 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 6448749993 cubic inches would be around 155.1 feet tall.

Recreational maths with 6448749993

• 6448749993 backwards is 3999478446
• 6448749993 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6448749993's digits is 63
• More coming soon!