138357988722

Names of 138357988722

• Cardinal: 138357988722 can be written as One hundred thirty-eight billion, three hundred fifty-seven million, nine hundred eighty-eight thousand, seven hundred twenty-two.

Scientific notation

• Scientific notation: 1.38357988722 × 10¹¹

Factors of 138357988722

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 1279

Divisors of 138357988722

• Number of divisors d(n): 54
• Complete list of divisors:
  1 2 3 6 9 18 73 146 219 438 657 1201 1314 2402 3603 5329 7206 10658 10809 15987 21618 31974 47961 87673 95922 175346 263019 526038 789057 1442401 1578114 2884802 4327203 6400129 8654406 12800258 12981609 19200387 25963218 38400774 57601161 105295273 115202322 210590546 315885819 631771638 947657457 1895314914 7686554929 15373109858 23059664787 46119329574 69178994361 138357988722
• Sum of all divisors σ(n): 304191693351
• Sum of proper divisors (its aliquot sum) s(n): 165833704629
• 138357988722 is an abundant number, because the sum of its proper divisors (165833704629) is greater than itself. Its abundance is 27475715907

Bases of 138357988722

• Binary: 10000000110110110001110101110101110010₂
• Hexadecimal: 0x2036C75D72
• Base-36: 1RK6RVCI

Squares and roots of 138357988722

• 138357988722 squared (138357988722²) is 19142933043197079193284
• 138357988722 cubed (138357988722³) is 2648577714096662621847728530143048
• The square root of 138357988722 is 371965.0369618091
• The cube root of 138357988722 is 5172.1138967583

Scales and comparisons

• 138,357,988,722 seconds is equal to 4,399 years, 18 weeks, 3 days, 14 hours, 38 minutes, 42 seconds.
• To count from 1 to 138,357,988,722 would take you about eight thousand, seven hundred ninety-eight 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 138357988722 cubic inches would be around 431 feet tall.

Recreational maths with 138357988722

• 138357988722 backwards is 227889753831
• The number of decimal digits it has is: 12
• The sum of 138357988722's digits is 63
• More coming soon!