138233018

Names of 138233018

• Cardinal: 138233018 can be written as One hundred thirty-eight million, two hundred thirty-three thousand and eighteen.

Scientific notation

• Scientific notation: 1.38233018 × 10⁸

Factors of 138233018

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 453

Divisors of 138233018

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 7 11 14 17 19 22 34 38 49 77 98 119 133 154 187 209 238 266 323 374 397 418 539 646 794 833 931 1078 1309 1463 1666 1862 2261 2618 2779 2926 3553 4367 4522 5558 6749 7106 7543 8734 9163 10241 13498 15086 15827 18326 19453 20482 24871 30569 31654 38906 47243 49742 52801 61138 74239 82973 94486 105602 128231 148478 165946 174097 213983 256462 330701 348194 369607 427966 519673 580811 661402 739214 897617 1039346 1161622 1410541 1795234 2821082 3637711 4065677 6283319 7275422 8131354 9873787 12566638 19747574 69116509 138233018
• Sum of all divisors σ(n): 294010560
• Sum of proper divisors (its aliquot sum) s(n): 155777542
• 138233018 is an abundant number, because the sum of its proper divisors (155777542) is greater than itself. Its abundance is 17544524

Bases of 138233018

• Binary: 1000001111010100010010111010₂
• Hexadecimal: 0x83D44BA
• Base-36: 2AATA2

Squares and roots of 138233018

• 138233018 squared (138233018²) is 19108367265388324
• 138233018 cubed (138233018³) is 2641407276147034968481832
• The square root of 138233018 is 11757.2538460305
• The cube root of 138233018 is 517.0556204477

Scales and comparisons

• 138,233,018 seconds is equal to 4 years, 20 weeks, 3 days, 22 hours, 3 minutes, 38 seconds.
• To count from 1 to 138,233,018 would take you about six 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 138233018 cubic inches would be around 43.1 feet tall.

Recreational maths with 138233018

• 138233018 backwards is 810332831
• The number of decimal digits it has is: 9
• The sum of 138233018's digits is 29
• More coming soon!