138239209740

Names of 138239209740

• Cardinal: 138239209740 can be written as One hundred thirty-eight billion, two hundred thirty-nine million, two hundred nine thousand, seven hundred forty.

Scientific notation

• Scientific notation: 1.3823920974 × 10¹¹

Factors of 138239209740

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 748985

Divisors of 138239209740

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 181 204 255 340 362 510 543 724 905 1020 1086 1810 2172 2715 3077 3620 5430 6154 9231 10860 12308 15385 18462 30770 36924 46155 61540 92310 184620 748777 1497554 2246331 2995108 3743885 4492662 7487770 8985324 11231655 12729209 14975540 22463310 25458418 38187627 44926620 50916836 63646045 76375254 127292090 135528637 152750508 190938135 254584180 271057274 381876270 406585911 542114548 677643185 763752540 813171822 1355286370 1626343644 2032929555 2303986829 2710572740 4065859110 4607973658 6911960487 8131718220 9215947316 11519934145 13823920974 23039868290 27647841948 34559802435 46079736580 69119604870 138239209740
• Sum of all divisors σ(n): 412103450304
• Sum of proper divisors (its aliquot sum) s(n): 273864240564
• 138239209740 is an abundant number, because the sum of its proper divisors (273864240564) is greater than itself. Its abundance is 135625030824

Bases of 138239209740

• Binary: 10000000101111101100101111000100001100₂
• Hexadecimal: 0x202FB2F10C
• Base-36: 1RI820WC

Squares and roots of 138239209740

• 138239209740 squared (138239209740²) is 19110079109539710867600
• 138239209740 cubed (138239209740³) is 2641762234171652525485113770424000
• The square root of 138239209740 is 371805.3385039005
• The cube root of 138239209740 is 5170.6334032593

Scales and comparisons

• 138,239,209,740 seconds is equal to 4,395 years, 30 weeks, 20 hours, 29 minutes.
• To count from 1 to 138,239,209,740 would take you about eight thousand, seven hundred ninety-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 138239209740 cubic inches would be around 430.9 feet tall.

Recreational maths with 138239209740

• 138239209740 backwards is 047902932831
• The number of decimal digits it has is: 12
• The sum of 138239209740's digits is 48
• More coming soon!