38901018728

Names of 38901018728

• Cardinal: 38901018728 can be written as Thirty-eight billion, nine hundred one million, eighteen thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 3.8901018728 × 10¹⁰

Factors of 38901018728

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 31958

Divisors of 38901018728

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 4 8 11 13 22 26 44 52 88 104 143 286 572 1103 1144 2206 4412 8824 12133 14339 24266 28678 30829 48532 57356 61658 97064 114712 123316 157729 246632 315458 339119 400777 630916 678238 801554 1261832 1356476 1603108 2712952 3206216 4408547 8817094 17634188 34004387 35268376 68008774 136017548 272035096 374048257 442057031 748096514 884114062 1496193028 1768228124 2992386056 3536456248 4862627341 9725254682 19450509364 38901018728
• Sum of all divisors σ(n): 85771526400
• Sum of proper divisors (its aliquot sum) s(n): 46870507672
• 38901018728 is an abundant number, because the sum of its proper divisors (46870507672) is greater than itself. Its abundance is 7969488944

Bases of 38901018728

• Binary: 100100001110101011100111000001101000₂
• Hexadecimal: 0x90EAE7068
• Base-36: HVCNU5K

Squares and roots of 38901018728

• 38901018728 squared (38901018728²) is 1513289258076206737984
• 38901018728 cubed (38901018728³) is 58868493769303743565515372964352
• The square root of 38901018728 is 197233.4117942495
• The cube root of 38901018728 is 3388.3400686973

Scales and comparisons

• 38,901,018,728 seconds is equal to 1,236 years, 48 weeks, 3 days, 6 hours, 32 minutes, 8 seconds.
• To count from 1 to 38,901,018,728 would take you about two thousand, four hundred seventy-three 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 38901018728 cubic inches would be around 282.4 feet tall.

Recreational maths with 38901018728

• 38901018728 backwards is 82781010983
• The number of decimal digits it has is: 11
• The sum of 38901018728's digits is 47
• More coming soon!