138148561691868

Names of 138148561691868

• Cardinal: 138148561691868 can be written as One hundred thirty-eight trillion, one hundred forty-eight billion, five hundred sixty-one million, six hundred ninety-one thousand, eight hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38148561691868 × 10¹⁴

Factors of 138148561691868

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1564665

Divisors of 138148561691868

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 85531 171062 256593 342124 513186 598717 1026372 1111903 1197434 1479109 1796151 2223806 2394868 2958218 3335709 3592302 4437327 4447612 5916436 6671418 7184604 7783321 8874654 10353763 13342836 15566642 17749308 19228417 20707526 23349963 31061289 31133284 38456834 41415052 46699926 57685251 62122578 76913668 93399852 115370502 124245156 134598919 230741004 269197838 403796757 538395676 807593514 1615187028 126509671879 253019343758 379529015637 506038687516 759058031274 885567703153 1518116062548 1644625734427 1771135406306 2656703109459 3289251468854 3542270812612 4933877203281 5313406218918 6578502937708 9867754406562 10626812437836 11512380140989 19735508813124 23024760281978 34537140422967 46049520563956 69074280845934 138148561691868
• Sum of all divisors σ(n): 396739237726720
• Sum of proper divisors (its aliquot sum) s(n): 258590676034852
• 138148561691868 is an abundant number, because the sum of its proper divisors (258590676034852) is greater than itself. Its abundance is 120442114342984

Bases of 138148561691868

• Binary: 11111011010010100110111111100100010010011011100₂
• Hexadecimal: 0x7DA537F224DC
• Base-36: 1CYWKMQOKC

Squares and roots of 138148561691868

• 138148561691868 squared (138148561691868²) is 19085025097531858682577329424
• 138148561691868 cubed (138148561691868³) is 2636568767077229072832585834145970617924032
• The square root of 138148561691868 is 11753661.6291208589
• The cube root of 138148561691868 is 51695.0297069751

Scales and comparisons

• 138,148,561,691,868 seconds is equal to 4,392,696 years, 48 weeks, 6 days, 5 hours, 57 minutes, 48 seconds.
• To count from 1 to 138,148,561,691,868 would take you about ten million, nine hundred eighty-one thousand, seven hundred forty-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 138148561691868 cubic inches would be around 4307.9 feet tall.

Recreational maths with 138148561691868

• 138148561691868 backwards is 868196165841831
• The number of decimal digits it has is: 15
• The sum of 138148561691868's digits is 75
• More coming soon!