138888812664

Names of 138888812664

• Cardinal: 138888812664 can be written as One hundred thirty-eight billion, eight hundred eighty-eight million, eight hundred twelve thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 1.38888812664 × 10¹¹

Factors of 138888812664

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 2103754

Divisors of 138888812664

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 7 8 9 12 14 18 21 24 28 36 42 56 63 72 84 126 131 168 252 262 393 504 524 786 917 1048 1179 1572 1834 2358 2751 3144 3668 4716 5502 7336 8253 9432 11004 16506 22008 33012 66024 2103611 4207222 6310833 8414444 12621666 14725277 16828888 18932499 25243332 29450554 37864998 44175831 50486664 58901108 75729996 88351662 117802216 132527493 151459992 176703324 265054986 275573041 353406648 530109972 551146082 826719123 1060219944 1102292164 1653438246 1929011287 2204584328 2480157369 3306876492 3858022574 4960314738 5787033861 6613752984 7716045148 9920629476 11574067722 15432090296 17361101583 19841258952 23148135444 34722203166 46296270888 69444406332 138888812664
• Sum of all divisors σ(n): 433175783040
• Sum of proper divisors (its aliquot sum) s(n): 294286970376
• 138888812664 is an abundant number, because the sum of its proper divisors (294286970376) is greater than itself. Its abundance is 155398157712

Bases of 138888812664

• Binary: 10000001010110011010110001100001111000₂
• Hexadecimal: 0x20566B1878
• Base-36: 1RSYT9Q0

Squares and roots of 138888812664

• 138888812664 squared (138888812664²) is 19290102283215686776896
• 138888812664 cubed (138888812664³) is 2679179402282942192262410507410944
• The square root of 138888812664 is 372677.8939835311
• The cube root of 138888812664 is 5178.7198958625

Scales and comparisons

• 138,888,812,664 seconds is equal to 4,416 years, 12 weeks, 1 day, 9 hours, 44 minutes, 24 seconds.
• To count from 1 to 138,888,812,664 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 138888812664 cubic inches would be around 431.6 feet tall.

Recreational maths with 138888812664

• 138888812664 backwards is 466218888831
• 138888812664 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138888812664's digits is 63
• More coming soon!