138638452734

Names of 138638452734

• Cardinal: 138638452734 can be written as One hundred thirty-eight billion, six hundred thirty-eight million, four hundred fifty-two thousand, seven hundred thirty-four.

Scientific notation

• Scientific notation: 1.38638452734 × 10¹¹

Factors of 138638452734

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 46102

Divisors of 138638452734

• Number of divisors d(n): 48
• Complete list of divisors:
  1 2 3 6 9 17 18 34 51 102 153 306 14221 28442 31859 42663 63718 85326 95577 127989 191154 241757 255978 286731 483514 541603 573462 725271 1083206 1450542 1624809 2175813 3249618 4351626 4874427 9748854 453066839 906133678 1359200517 2718401034 4077601551 7702136263 8155203102 15404272526 23106408789 46212817578 69319226367 138638452734
• Sum of all divisors σ(n): 318085269840
• Sum of proper divisors (its aliquot sum) s(n): 179446817106
• 138638452734 is an abundant number, because the sum of its proper divisors (179446817106) is greater than itself. Its abundance is 40808364372

Bases of 138638452734

• Binary: 10000001000111011111101110011111111110₂
• Hexadecimal: 0x20477EE7FE
• Base-36: 1ROTR6RI

Squares and roots of 138638452734

• 138638452734 squared (138638452734²) is 19220620576477552074756
• 138638452734 cubed (138638452734³) is 2664717097310130935528083340582904
• The square root of 138638452734 is 372341.8492917497
• The cube root of 138638452734 is 5175.6063170853

Scales and comparisons

• 138,638,452,734 seconds is equal to 4,408 years, 14 weeks, 1 day, 17 hours, 18 minutes, 54 seconds.
• To count from 1 to 138,638,452,734 would take you about eight thousand, eight hundred sixteen 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 138638452734 cubic inches would be around 431.3 feet tall.

Recreational maths with 138638452734

• 138638452734 backwards is 437254836831
• The number of decimal digits it has is: 12
• The sum of 138638452734's digits is 54
• More coming soon!