6643221942

Names of 6643221942

• Cardinal: 6643221942 can be written as Six billion, six hundred forty-three million, two hundred twenty-one thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 6.643221942 × 10⁹

Factors of 6643221942

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 3402

Divisors of 6643221942

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 6 7 14 21 31 42 49 62 93 98 147 186 217 294 343 434 651 686 961 1029 1302 1519 1922 2058 2883 3038 3359 4557 5766 6718 6727 9114 10077 10633 13454 20154 20181 21266 23513 31899 40362 47026 47089 63798 70539 94178 104129 141078 141267 164591 208258 282534 312387 329182 329623 493773 624774 659246 728903 987546 988869 1152137 1457806 1977738 2186709 2304274 3227999 3456411 4373418 5102321 6455998 6912822 9683997 10204642 15306963 19367994 22595993 30613926 35716247 45191986 67787979 71432494 107148741 135575958 158171951 214297482 316343902 474515853 949031706 1107203657 2214407314 3321610971 6643221942
• Sum of all divisors σ(n): 16015104000
• Sum of proper divisors (its aliquot sum) s(n): 9371882058
• 6643221942 is an abundant number, because the sum of its proper divisors (9371882058) is greater than itself. Its abundance is 2728660116

Bases of 6643221942

• Binary: 110001011111101111000010110110110₂
• Hexadecimal: 0x18BF785B6
• Base-36: 31V7AUU

Squares and roots of 6643221942

• 6643221942 squared (6643221942²) is 44132397770670251364
• 6643221942 cubed (6643221942³) is 293181313223188497907980228888
• The square root of 6643221942 is 81505.9626162405
• The cube root of 6643221942 is 1879.8632334113

Scales and comparisons

• 6,643,221,942 seconds is equal to 211 years, 12 weeks, 1 day, 3 hours, 25 minutes, 42 seconds.
• To count from 1 to 6,643,221,942 would take you about four hundred twenty-two 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 6643221942 cubic inches would be around 156.7 feet tall.

Recreational maths with 6643221942

• 6643221942 backwards is 2491223466
• The number of decimal digits it has is: 10
• The sum of 6643221942's digits is 39
• More coming soon!