138039581072

Names of 138039581072

• Cardinal: 138039581072 can be written as One hundred thirty-eight billion, thirty-nine million, five hundred eighty-one thousand and seventy-two.

Scientific notation

• Scientific notation: 1.38039581072 × 10¹¹

Factors of 138039581072

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 8842

Divisors of 138039581072

• Number of divisors d(n): 80
• Complete list of divisors:
  1 2 4 8 16 31 61 62 122 124 244 248 488 496 557 976 1114 1891 2228 3782 4456 7564 8191 8912 15128 16382 17267 30256 32764 33977 34534 65528 67954 69068 131056 135908 138136 253921 271816 276272 499651 507842 543632 999302 1015684 1053287 1998604 2031368 2106574 3997208 4062736 4213148 4562387 7994416 8426296 9124774 15489181 16852592 18249548 30978362 36499096 61956724 72998192 123913448 141433997 247826896 278305607 282867994 556611214 565735988 1113222428 1131471976 2226444856 2262943952 4452889712 8627473817 17254947634 34509895268 69019790536 138039581072
• Sum of all divisors σ(n): 281143148544
• Sum of proper divisors (its aliquot sum) s(n): 143103567472
• 138039581072 is an abundant number, because the sum of its proper divisors (143103567472) is greater than itself. Its abundance is 5063986400

Bases of 138039581072

• Binary: 10000000100011110011001101100110010000₂
• Hexadecimal: 0x2023CCD990
• Base-36: 1REX7AFK

Squares and roots of 138039581072

• 138039581072 squared (138039581072²) is 19054925942533260669184
• 138039581072 cubed (138039581072³) is 2630333994465276049200333740085248
• The square root of 138039581072 is 371536.7829327267
• The cube root of 138039581072 is 5168.1432657569

Scales and comparisons

• 138,039,581,072 seconds is equal to 4,389 years, 12 weeks, 8 hours, 4 minutes, 32 seconds.
• To count from 1 to 138,039,581,072 would take you about eight thousand, seven hundred seventy-eight 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 138039581072 cubic inches would be around 430.7 feet tall.

Recreational maths with 138039581072

• 138039581072 backwards is 270185930831
• The number of decimal digits it has is: 12
• The sum of 138039581072's digits is 47
• More coming soon!