138618975707648

Names of 138618975707648

• Cardinal: 138618975707648 can be written as One hundred thirty-eight trillion, six hundred eighteen billion, nine hundred seventy-five million, seven hundred seven thousand, six hundred forty-eight.

Scientific notation

• Scientific notation: 1.38618975707648 × 10¹⁴

Factors of 138618975707648

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 6354

Divisors of 138618975707648

• Number of divisors d(n): 90
• Complete list of divisors:
  1 2 4 8 16 32 64 83 128 166 256 332 512 664 1328 2656 5312 6269 6889 10624 12538 13778 21248 25076 27556 42496 50152 55112 100304 110224 200608 220448 401216 440896 520327 802432 881792 1040654 1604864 1763584 2081308 3209728 3527168 4162616 8325232 16650464 33300928 39300361 43187141 66601856 78600722 86374282 133203712 157201444 172748564 266407424 314402888 345497128 628805776 690994256 1257611552 1381988512 2515223104 2763977024 3261929963 5030446208 5527954048 6523859926 10060892416 11055908096 13047719852 20121784832 22111816192 26095439704 52190879408 104381758816 208763517632 270740186929 417527035264 541480373858 835054070528 1082960747716 1670108141056 2165921495432 4331842990864 8663685981728 17327371963456 34654743926912 69309487853824 138618975707648
• Sum of all divisors σ(n): 280389096136149
• Sum of proper divisors (its aliquot sum) s(n): 141770120428501
• 138618975707648 is an abundant number, because the sum of its proper divisors (141770120428501) is greater than itself. Its abundance is 3151144720853

Bases of 138618975707648

• Binary: 11111100001001010111110110011100110001000000000₂
• Hexadecimal: 0x7E12BECE6200
• Base-36: 1D4WOF3M68

Squares and roots of 138618975707648

• 138618975707648 squared (138618975707648²) is 19215220426237506342365691904
• 138618975707648 cubed (138618975707648³) is 2663594173481718539920850175060675544481792
• The square root of 138618975707648 is 11773656.0043024869
• The cube root of 138618975707648 is 51753.6393569761

Scales and comparisons

• 138,618,975,707,648 seconds is equal to 4,407,654 years, 33 weeks, 5 days, 21 hours, 54 minutes, 8 seconds.
• To count from 1 to 138,618,975,707,648 would take you about eleven million, nineteen thousand, one hundred thirty-six 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 138618975707648 cubic inches would be around 4312.8 feet tall.

Recreational maths with 138618975707648

• 138618975707648 backwards is 846707579816831
• The number of decimal digits it has is: 15
• The sum of 138618975707648's digits is 80
• More coming soon!