138395500551

Names of 138395500551

• Cardinal: 138395500551 can be written as One hundred thirty-eight billion, three hundred ninety-five million, five hundred thousand, five hundred fifty-one.

Scientific notation

• Scientific notation: 1.38395500551 × 10¹¹

Factors of 138395500551

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 17571

Divisors of 138395500551

• Number of divisors d(n): 72
• Complete list of divisors:
  1 3 7 9 11 21 33 63 77 99 107 231 321 693 749 963 1177 2247 3531 6741 8239 10593 11449 17443 24717 34347 52329 74151 80143 103041 122101 125939 156987 191873 240429 366303 377817 575619 721287 881573 1098909 1133451 1343111 1726857 1866401 2644719 4029333 5599203 7934157 12087999 13064807 16797609 20530411 39194421 61591233 117583263 143712877 184773699 199704907 431138631 599114721 1293415893 1397934349 1797344163 2196753977 4193803047 6590261931 12581409141 15377277839 19770785793 46131833517 138395500551
• Sum of all divisors σ(n): 251597184384
• Sum of proper divisors (its aliquot sum) s(n): 113201683833
• 138395500551 is a deficient number, because the sum of its proper divisors (113201683833) is less than itself. Its deficiency is 25193816718

Bases of 138395500551

• Binary: 10000000111001000000111100000000000111₂
• Hexadecimal: 0x203903C007
• Base-36: 1RKT3VNR

Squares and roots of 138395500551

• 138395500551 squared (138395500551²) is 19153314572761841303601
• 138395500551 cubed (138395500551³) is 2650732557508137737724286753784151
• The square root of 138395500551 is 372015.4574086943
• The cube root of 138395500551 is 5172.5812783255

Scales and comparisons

• 138,395,500,551 seconds is equal to 4,400 years, 28 weeks, 3 days, 18 hours, 35 minutes, 51 seconds.
• To count from 1 to 138,395,500,551 would take you about eight thousand, eight hundred one 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 138395500551 cubic inches would be around 431 feet tall.

Recreational maths with 138395500551

• 138395500551 backwards is 155005593831
• The number of decimal digits it has is: 12
• The sum of 138395500551's digits is 45
• More coming soon!