638090326445

Names of 638090326445

• Cardinal: 638090326445 can be written as Six hundred thirty-eight billion, ninety million, three hundred twenty-six thousand, four hundred forty-five.

Scientific notation

• Scientific notation: 6.38090326445 × 10¹¹

Factors of 638090326445

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8266

Divisors of 638090326445

• Number of divisors d(n): 144
• Complete list of divisors:
  1 5 11 13 17 29 55 65 85 143 145 169 187 221 289 319 377 493 715 845 935 1105 1445 1595 1859 1885 2431 2465 2873 3179 3757 4147 4901 5423 6409 8191 8381 9295 12155 14365 15895 18785 20735 24505 27115 31603 32045 40955 41327 41905 48841 53911 70499 83317 90101 92191 106483 108953 139247 158015 206635 237539 244205 269555 352495 416585 450505 460955 532415 537251 544765 696235 916487 1171313 1187695 1198483 1384279 1416389 1531717 1810211 2367199 2612929 2686255 3088007 4038163 4582435 5856565 5992415 6921395 7081945 7658585 9051055 11835995 13064645 15227069 15440035 15580279 19912321 20190815 23532743 26039189 30773587 33968077 40144091 44419793 52496119 68648771 76135345 77901395 99561605 117663715 130195945 153867935 169840385 200720455 222098965 258860173 262480595 338509457 343243855 400056631 441585001 577457309 682449547 755136481 892434023 1294300865 1692547285 2000283155 2207925005 2887286545 3412247735 3775682405 4400622941 4462170115 7506945017 9816774253 11601642299 22003114705 37534725085 49083871265 58008211495 127618065289 638090326445
• Sum of all divisors σ(n): 994107064320
• Sum of proper divisors (its aliquot sum) s(n): 356016737875
• 638090326445 is a deficient number, because the sum of its proper divisors (356016737875) is less than itself. Its deficiency is 282073588570

Bases of 638090326445

• Binary: 1001010010010001001001011011000110101101₂
• Hexadecimal: 0x949125B1AD
• Base-36: 854UI6Y5

Squares and roots of 638090326445

• 638090326445 squared (638090326445²) is 407159264702686666338025
• 638090326445 cubed (638090326445³) is 259804388129243500792179164966571125
• The square root of 638090326445 is 798805.5623523161
• The cube root of 638090326445 is 8609.1588311909

Scales and comparisons

• 638,090,326,445 seconds is equal to 20,289 years, 15 weeks, 3 days, 16 hours, 54 minutes, 5 seconds.
• To count from 1 to 638,090,326,445 would take you about forty thousand, five hundred seventy-eight 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 638090326445 cubic inches would be around 717.4 feet tall.

Recreational maths with 638090326445

• 638090326445 backwards is 544623090836
• The number of decimal digits it has is: 12
• The sum of 638090326445's digits is 50
• More coming soon!