138301939872

Names of 138301939872

• Cardinal: 138301939872 can be written as One hundred thirty-eight billion, three hundred one million, nine hundred thirty-nine thousand, eight hundred seventy-two.

Scientific notation

• Scientific notation: 1.38301939872 × 10¹¹

Factors of 138301939872

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 79175

Divisors of 138301939872

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 72 96 144 288 6619 13238 19857 26476 39714 52952 59571 72551 79428 105904 119142 145102 158856 211808 217653 238284 290204 317712 435306 476568 580408 635424 652959 870612 953136 1160816 1305918 1741224 1906272 2321632 2611836 3482448 5223672 6964896 10447344 20894688 480215069 960430138 1440645207 1920860276 2881290414 3841720552 4321935621 5762580828 7683441104 8643871242 11525161656 15366882208 17287742484 23050323312 34575484968 46100646624 69150969936 138301939872
• Sum of all divisors σ(n): 393360982560
• Sum of proper divisors (its aliquot sum) s(n): 255059042688
• 138301939872 is an abundant number, because the sum of its proper divisors (255059042688) is greater than itself. Its abundance is 116757102816

Bases of 138301939872

• Binary: 10000000110011011100000010000010100000₂
• Hexadecimal: 0x20337020A0
• Base-36: 1RJ9EJS0

Squares and roots of 138301939872

• 138301939872 squared (138301939872²) is 19127426572358303376384
• 138301939872 cubed (138301939872³) is 2645360199716393130800594552782848
• The square root of 138301939872 is 371889.6877731353
• The cube root of 138301939872 is 5171.4153942903

Scales and comparisons

• 138,301,939,872 seconds is equal to 4,397 years, 29 weeks, 5 days, 21 hours, 31 minutes, 12 seconds.
• To count from 1 to 138,301,939,872 would take you about eight thousand, seven hundred ninety-five 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 138301939872 cubic inches would be around 431 feet tall.

Recreational maths with 138301939872

• 138301939872 backwards is 278939103831
• The number of decimal digits it has is: 12
• The sum of 138301939872's digits is 54
• More coming soon!