138890108115

Names of 138890108115

• Cardinal: 138890108115 can be written as One hundred thirty-eight billion, eight hundred ninety million, one hundred eight thousand, one hundred fifteen.

Scientific notation

• Scientific notation: 1.38890108115 × 10¹¹

Factors of 138890108115

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 46901

Divisors of 138890108115

• Number of divisors d(n): 48
• Complete list of divisors:
  1 3 5 9 11 15 33 45 55 99 165 495 7043 21129 35215 39839 63387 77473 105645 119517 199195 232419 316935 358551 387365 438229 597585 697257 1162095 1314687 1792755 2191145 3486285 3944061 6573435 19720305 280586077 841758231 1402930385 2525274693 3086446847 4208791155 9259340541 12626373465 15432234235 27778021623 46296702705 138890108115
• Sum of all divisors σ(n): 262672450560
• Sum of proper divisors (its aliquot sum) s(n): 123782342445
• 138890108115 is a deficient number, because the sum of its proper divisors (123782342445) is less than itself. Its deficiency is 15107765670

Bases of 138890108115

• Binary: 10000001010110011111101101110011010011₂
• Hexadecimal: 0x20567EDCD3
• Base-36: 1RSZL1AR

Squares and roots of 138890108115

• 138890108115 squared (138890108115²) is 19290462132196388853225
• 138890108115 cubed (138890108115³) is 2679254371129069870237001116420875
• The square root of 138890108115 is 372679.6320098537
• The cube root of 138890108115 is 5178.7359968881

Scales and comparisons

• 138,890,108,115 seconds is equal to 4,416 years, 14 weeks, 2 days, 9 hours, 35 minutes, 15 seconds.
• To count from 1 to 138,890,108,115 would take you about eight thousand, eight hundred thirty-two 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 138890108115 cubic inches would be around 431.6 feet tall.

Recreational maths with 138890108115

• 138890108115 backwards is 511801098831
• 138890108115 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138890108115's digits is 45
• More coming soon!