138758977

Names of 138758977

• Cardinal: 138758977 can be written as One hundred thirty-eight million, seven hundred fifty-eight thousand, nine hundred seventy-seven.

Scientific notation

• Scientific notation: 1.38758977 × 10⁸

Factors of 138758977

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 3
• Sum of prime factors: 861887

Divisors of 138758977

• Number of divisors d(n): 8
• Complete list of divisors:
  1 7 23 161 861857 6032999 19822711 138758977
• Sum of all divisors σ(n): 165476736
• Sum of proper divisors (its aliquot sum) s(n): 26717759
• 138758977 is a deficient number, because the sum of its proper divisors (26717759) is less than itself. Its deficiency is 112041218

Bases of 138758977

• Binary: 1000010001010100101101000001₂
• Hexadecimal: 0x8454B41
• Base-36: 2AM341

Squares and roots of 138758977

• 138758977 squared (138758977²) is 19254053698086529
• 138758977 cubed (138758977³) is 2671672794249553621520833
• The square root of 138758977 is 11779.6000356549
• The cube root of 138758977 is 517.7105673785

Scales and comparisons

• 138,758,977 seconds is equal to 4 years, 21 weeks, 3 days, 9 minutes, 37 seconds.
• To count from 1 to 138,758,977 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 138758977 cubic inches would be around 43.1 feet tall.

Recreational maths with 138758977

• 138758977 backwards is 779857831
• The number of decimal digits it has is: 9
• The sum of 138758977's digits is 55
• More coming soon!