138203856

Names of 138203856

• Cardinal: 138203856 can be written as One hundred thirty-eight million, two hundred three thousand, eight hundred fifty-six.

Scientific notation

• Scientific notation: 1.38203856 × 10⁸

Factors of 138203856

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 1000

Divisors of 138203856

• Number of divisors d(n): 120
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 16 18 21 24 28 36 42 48 56 63 72 84 112 126 144 167 168 252 334 336 501 504 668 821 1002 1008 1169 1336 1503 1642 2004 2338 2463 2672 3006 3284 3507 4008 4676 4926 5747 6012 6568 7014 7389 8016 9352 9852 10521 11494 12024 13136 14028 14778 17241 18704 19704 21042 22988 24048 28056 29556 34482 39408 42084 45976 51723 56112 59112 68964 84168 91952 103446 118224 137107 137928 168336 206892 274214 275856 411321 413784 548428 822642 827568 959749 1096856 1233963 1645284 1919498 2193712 2467926 2879247 3290568 3838996 4935852 5758494 6581136 7677992 8637741 9871704 11516988 15355984 17275482 19743408 23033976 34550964 46067952 69101928 138203856
• Sum of all divisors σ(n): 445221504
• Sum of proper divisors (its aliquot sum) s(n): 307017648
• 138203856 is an abundant number, because the sum of its proper divisors (307017648) is greater than itself. Its abundance is 168813792

Bases of 138203856

• Binary: 1000001111001101001011010000₂
• Hexadecimal: 0x83CD2D0
• Base-36: 2AA6S0

Squares and roots of 138203856

• 138203856 squared (138203856²) is 19100305813268736
• 138203856 cubed (138203856³) is 2639735914172955279446016
• The square root of 138203856 is 11756.0136100635
• The cube root of 138203856 is 517.0192580873

Scales and comparisons

• 138,203,856 seconds is equal to 4 years, 20 weeks, 3 days, 13 hours, 57 minutes, 36 seconds.
• To count from 1 to 138,203,856 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 138203856 cubic inches would be around 43.1 feet tall.

Recreational maths with 138203856

• 138203856 backwards is 658302831
• 138203856 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138203856's digits is 36
• More coming soon!