138939300

Names of 138939300

• Cardinal: 138939300 can be written as One hundred thirty-eight million, nine hundred thirty-nine thousand, three hundred.

Scientific notation

• Scientific notation: 1.389393 × 10⁸

Factors of 138939300

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 1036

Divisors of 138939300

• Number of divisors d(n): 180
• Complete list of divisors:
  1 2 3 4 5 6 9 10 12 15 17 18 20 25 27 30 34 36 45 50 51 54 60 68 75 81 85 90 100 102 108 135 150 153 162 170 180 204 225 255 270 300 306 324 340 405 425 450 459 510 540 612 675 765 810 850 900 918 1009 1020 1275 1350 1377 1530 1620 1700 1836 2018 2025 2295 2550 2700 2754 3027 3060 3825 4036 4050 4590 5045 5100 5508 6054 6885 7650 8100 9081 9180 10090 11475 12108 13770 15135 15300 17153 18162 20180 22950 25225 27243 27540 30270 34306 34425 36324 45405 45900 50450 51459 54486 60540 68612 68850 75675 81729 85765 90810 100900 102918 108972 136215 137700 151350 154377 163458 171530 181620 205836 227025 257295 272430 302700 308754 326916 343060 408645 428825 454050 463131 514590 544860 617508 681075 771885 817290 857650 908100 926262 1029180 1286475 1362150 1389393 1543770 1634580 1715300 1852524 2043225 2315655 2572950 2724300 2778786 3087540 3859425 4086450 4631310 5145900 5557572 6946965 7718850 8172900 9262620 11578275 13893930 15437700 23156550 27787860 34734825 46313100 69469650 138939300
• Sum of all divisors σ(n): 477352260
• Sum of proper divisors (its aliquot sum) s(n): 338412960
• 138939300 is an abundant number, because the sum of its proper divisors (338412960) is greater than itself. Its abundance is 199473660

Bases of 138939300

• Binary: 1000010010000000101110100100₂
• Hexadecimal: 0x8480BA4
• Base-36: 2APY90

Squares and roots of 138939300

• 138939300 squared (138939300²) is 19304129084490000
• 138939300 cubed (138939300³) is 2682102182108681457000000
• The square root of 138939300 is 11787.2515880505
• The cube root of 138939300 is 517.9347323639

Scales and comparisons

• 138,939,300 seconds is equal to 4 years, 21 weeks, 5 days, 2 hours, 15 minutes.
• To count from 1 to 138,939,300 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 138939300 cubic inches would be around 43.2 feet tall.

Recreational maths with 138939300

• 138939300 backwards is 003939831
• 138939300 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138939300's digits is 36
• More coming soon!