138428719444

Names of 138428719444

• Cardinal: 138428719444 can be written as One hundred thirty-eight billion, four hundred twenty-eight million, seven hundred nineteen thousand, four hundred forty-four.

Scientific notation

• Scientific notation: 1.38428719444 × 10¹¹

Factors of 138428719444

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 30198

Divisors of 138428719444

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 4 19 38 73 76 146 292 853 1387 1706 2774 3412 5548 16207 29251 32414 58502 62269 64828 117004 124538 249076 555769 1111538 1183111 2135323 2223076 2366222 4270646 4732444 8541292 24951103 40571137 49902206 81142274 99804412 162284548 474070957 948141914 1821430519 1896283828 3642861038 7285722076 34607179861 69214359722 138428719444
• Sum of all divisors σ(n): 258805314880
• Sum of proper divisors (its aliquot sum) s(n): 120376595436
• 138428719444 is a deficient number, because the sum of its proper divisors (120376595436) is less than itself. Its deficiency is 18052124008

Bases of 138428719444

• Binary: 10000000111010111111101010000101010100₂
• Hexadecimal: 0x203AFEA154
• Base-36: 1RLCVVIS

Squares and roots of 138428719444

• 138428719444 squared (138428719444²) is 19162510366905663669136
• 138428719444 cubed (138428719444³) is 2652641771423125618469450985880384
• The square root of 138428719444 is 372060.1019244069
• The cube root of 138428719444 is 5172.9951012155

Scales and comparisons

• 138,428,719,444 seconds is equal to 4,401 years, 31 weeks, 3 days, 6 hours, 4 minutes, 4 seconds.
• To count from 1 to 138,428,719,444 would take you about eight thousand, eight hundred three 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 138428719444 cubic inches would be around 431.1 feet tall.

Recreational maths with 138428719444

• 138428719444 backwards is 444917824831
• The number of decimal digits it has is: 12
• The sum of 138428719444's digits is 55
• More coming soon!