138107520

Names of 138107520

• Cardinal: 138107520 can be written as One hundred thirty-eight million, one hundred seven thousand, five hundred twenty.

Scientific notation

• Scientific notation: 1.3810752 × 10⁸

Factors of 138107520

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 23987

Divisors of 138107520

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 23977 47954 71931 95908 119885 143862 191816 215793 239770 287724 359655 383632 431586 479540 575448 719310 767264 863172 959080 1078965 1150896 1438620 1534528 1726344 1918160 2157930 2301792 2877240 3069056 3452688 3836320 4315860 4603584 5754480 6905376 7672640 8631720 9207168 11508960 13810752 15345280 17263440 23017920 27621504 34526880 46035840 69053760 138107520
• Sum of all divisors σ(n): 476922420
• Sum of proper divisors (its aliquot sum) s(n): 338814900
• 138107520 is an abundant number, because the sum of its proper divisors (338814900) is greater than itself. Its abundance is 200707380

Bases of 138107520

• Binary: 1000001110110101101010000000₂
• Hexadecimal: 0x83B5A80
• Base-36: 2A84G0

Squares and roots of 138107520

• 138107520 squared (138107520²) is 19073687080550400
• 138107520 cubed (138107520³) is 2634219619950855979008000
• The square root of 138107520 is 11751.9155885327
• The cube root of 138107520 is 516.8990994897

Scales and comparisons

• 138,107,520 seconds is equal to 4 years, 20 weeks, 2 days, 11 hours, 12 minutes.
• To count from 1 to 138,107,520 would take you about 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 138107520 cubic inches would be around 43.1 feet tall.

Recreational maths with 138107520

• 138107520 backwards is 025701831
• The number of decimal digits it has is: 9
• The sum of 138107520's digits is 27
• More coming soon!