6638042768

Names of 6638042768

• Cardinal: 6638042768 can be written as Six billion, six hundred thirty-eight million, forty-two thousand, seven hundred sixty-eight.

Scientific notation

• Scientific notation: 6.638042768 × 10⁹

Factors of 6638042768

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 979

Divisors of 6638042768

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 4 7 8 14 16 17 19 28 34 38 56 68 76 112 119 133 136 152 238 266 272 281 304 323 476 532 562 646 653 952 1064 1124 1292 1306 1904 1967 2128 2248 2261 2584 2612 3934 4496 4522 4571 4777 5168 5224 5339 7868 9044 9142 9554 10448 10678 11101 12407 15736 18088 18284 19108 21356 22202 24814 31472 33439 36176 36568 37373 38216 42712 44404 49628 66878 73136 74746 76432 77707 85424 86849 88808 90763 99256 133756 149492 155414 173698 177616 181526 183493 198512 210919 267512 298984 310828 347396 363052 366986 421838 535024 597968 621656 635341 694792 726104 733972 843676 1243312 1270682 1284451 1389584 1452208 1467944 1476433 1687352 2541364 2568902 2935888 2952866 3119381 3374704 3486367 5082728 5137804 5905732 6238762 6972734 10165456 10275608 11811464 12477524 13945468 20551216 21835667 23622928 24404569 24955048 27890936 43671334 48809138 49910096 55781872 59268239 87342668 97618276 118536478 174685336 195236552 237072956 349370672 390473104 414877673 474145912 829755346 948291824 1659510692 3319021384 6638042768
• Sum of all divisors σ(n): 16465731840
• Sum of proper divisors (its aliquot sum) s(n): 9827689072
• 6638042768 is an abundant number, because the sum of its proper divisors (9827689072) is greater than itself. Its abundance is 3189646304

Bases of 6638042768

• Binary: 110001011101010000111111010010000₂
• Hexadecimal: 0x18BA87E90
• Base-36: 31S4AKW

Squares and roots of 6638042768

• 6638042768 squared (6638042768²) is 44063611789797101824
• 6638042768 cubed (6638042768³) is 292496139573222187950162808832
• The square root of 6638042768 is 81474.1846722015
• The cube root of 6638042768 is 1879.3745814629

Scales and comparisons

• 6,638,042,768 seconds is equal to 211 years, 3 weeks, 4 days, 4 hours, 46 minutes, 8 seconds.
• To count from 1 to 6,638,042,768 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 6638042768 cubic inches would be around 156.6 feet tall.

Recreational maths with 6638042768

• 6638042768 backwards is 8672408366
• The number of decimal digits it has is: 10
• The sum of 6638042768's digits is 50
• More coming soon!