6868400440

Names of 6868400440

• Cardinal: 6868400440 can be written as Six billion, eight hundred sixty-eight million, four hundred thousand, four hundred forty.

Scientific notation

• Scientific notation: 6.86840044 × 10⁹

Factors of 6868400440

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 3968

Divisors of 6868400440

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 4 5 8 10 11 19 20 22 38 40 44 55 76 88 95 110 121 152 190 209 220 242 361 380 418 440 484 605 722 760 836 968 1045 1210 1444 1672 1805 2090 2299 2420 2888 3610 3931 3971 4180 4598 4840 7220 7862 7942 8360 9196 11495 14440 15724 15884 18392 19655 19855 22990 31448 31768 39310 39710 43241 43681 45980 74689 78620 79420 86482 87362 91960 149378 157240 158840 172964 174724 216205 218405 298756 345928 349448 373445 432410 436810 475651 597512 746890 821579 864820 873620 951302 1419091 1493780 1643158 1729640 1747240 1902604 2378255 2838182 2987560 3286316 3805208 4107895 4756510 5676364 6572632 7095455 8215790 9037369 9513020 11352728 14190910 15610001 16431580 18074738 19026040 28381820 31220002 32863160 36149476 45186845 56763640 62440004 72298952 78050005 90373690 124880008 156100010 171710011 180747380 312200020 343420022 361494760 624400040 686840044 858550055 1373680088 1717100110 3434200220 6868400440
• Sum of all divisors σ(n): 17932161240
• Sum of proper divisors (its aliquot sum) s(n): 11063760800
• 6868400440 is an abundant number, because the sum of its proper divisors (11063760800) is greater than itself. Its abundance is 4195360360

Bases of 6868400440

• Binary: 110011001011000110111100100111000₂
• Hexadecimal: 0x199637938
• Base-36: 35L9NP4

Squares and roots of 6868400440

• 6868400440 squared (6868400440²) is 47174924604192193600
• 6868400440 cubed (6868400440³) is 324016272908400488366805184000
• The square root of 6868400440 is 82875.8133595079
• The cube root of 6868400440 is 1900.8676037627

Scales and comparisons

• 6,868,400,440 seconds is equal to 218 years, 20 weeks, 3 days, 9 hours, 40 seconds.
• To count from 1 to 6,868,400,440 would take you about four hundred thirty-six 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 6868400440 cubic inches would be around 158.4 feet tall.

Recreational maths with 6868400440

• 6868400440 backwards is 0440048686
• 6868400440 is a Harshad number.
• The number of decimal digits it has is: 10
• The sum of 6868400440's digits is 40
• More coming soon!