38820990

Names of 38820990

• Cardinal: 38820990 can be written as Thirty-eight million, eight hundred twenty thousand, nine hundred ninety.

Scientific notation

• Scientific notation: 3.882099 × 10⁷

Factors of 38820990

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 73

Divisors of 38820990

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 5 6 10 13 15 19 26 30 31 38 39 57 62 65 78 93 95 114 130 155 169 186 190 195 247 285 310 338 390 403 465 494 507 570 589 741 806 845 930 1014 1178 1209 1235 1482 1690 1767 2015 2197 2418 2470 2535 2945 3211 3534 3705 4030 4394 5070 5239 5890 6045 6422 6591 7410 7657 8835 9633 10478 10985 12090 13182 15314 15717 16055 17670 19266 21970 22971 26195 31434 32110 32955 38285 41743 45942 48165 52390 65910 68107 76570 78585 83486 96330 99541 114855 125229 136214 157170 199082 204321 208715 229710 250458 298623 340535 408642 417430 497705 597246 626145 681070 995410 1021605 1252290 1294033 1493115 2043210 2588066 2986230 3882099 6470165 7764198 12940330 19410495 38820990
• Sum of all divisors σ(n): 109670400
• Sum of proper divisors (its aliquot sum) s(n): 70849410
• 38820990 is an abundant number, because the sum of its proper divisors (70849410) is greater than itself. Its abundance is 32028420

Bases of 38820990

• Binary: 10010100000101110001111110₂
• Hexadecimal: 0x2505C7E
• Base-36: N42GU

Squares and roots of 38820990

• 38820990 squared (38820990²) is 1507069264580100
• 38820990 cubed (38820990³) is 58505920849571416299000
• The square root of 38820990 is 6230.6492438589
• The cube root of 38820990 is 338.6014930713

Scales and comparisons

• 38,820,990 seconds is equal to 1 year, 12 weeks, 1 day, 7 hours, 36 minutes, 30 seconds.
• To count from 1 to 38,820,990 would take you about forty-four weeks!

  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 38820990 cubic inches would be around 28.2 feet tall.

Recreational maths with 38820990

• 38820990 backwards is 09902883
• 38820990 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 38820990's digits is 39
• More coming soon!