39138921044640

Names of 39138921044640

• Cardinal: 39138921044640 can be written as Thirty-nine trillion, one hundred thirty-eight billion, nine hundred twenty-one million, forty-four thousand, six hundred forty.

Scientific notation

• Scientific notation: 3.913892104464 × 10¹³

Factors of 39138921044640

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 9059935437

Divisors of 39138921044640

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 27 30 32 36 40 45 48 54 60 72 80 90 96 108 120 135 144 160 180 216 240 270 288 360 432 480 540 720 864 1080 1440 2160 4320 9059935427 18119870854 27179806281 36239741708 45299677135 54359612562 72479483416 81539418843 90599354270 108719225124 135899031405 144958966832 163078837686 181198708540 217438450248 244618256529 271798062810 289917933664 326157675372 362397417080 407697094215 434876900496 489236513058 543596125620 652315350744 724794834160 815394188430 869753800992 978473026116 1087192251240 1223091282645 1304630701488 1449589668320 1630788376860 1956946052232 2174384502480 2446182565290 2609261402976 3261576753720 3913892104464 4348769004960 4892365130580 6523153507440 7827784208928 9784730261160 13046307014880 19569460522320 39138921044640
• Sum of all divisors σ(n): 136986223671360
• Sum of proper divisors (its aliquot sum) s(n): 97847302626720
• 39138921044640 is an abundant number, because the sum of its proper divisors (97847302626720) is greater than itself. Its abundance is 58708381582080

Bases of 39138921044640

• Binary: 1000111001100010111101011111000101101010100000₂
• Hexadecimal: 0x2398BD7C5AA0
• Base-36: DVG671WO0

Squares and roots of 39138921044640

• 39138921044640 squared (39138921044640²) is 1531855140538563868872729600
• 39138921044640 cubed (39138921044640³) is 59955157397364762190905613975240249344000
• The square root of 39138921044640 is 6256110.6963224363
• The cube root of 39138921044640 is 33952.3325808241

Scales and comparisons

• 39,138,921,044,640 seconds is equal to 1,244,496 years, 32 weeks, 3 days, 8 hours, 24 minutes.
• To count from 1 to 39,138,921,044,640 would take you about three million, one hundred eleven thousand, two hundred forty-one 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 39138921044640 cubic inches would be around 2829.4 feet tall.

Recreational maths with 39138921044640

• 39138921044640 backwards is 04644012983193
• 39138921044640 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 39138921044640's digits is 54
• More coming soon!