138047650

Names of 138047650

• Cardinal: 138047650 can be written as One hundred thirty-eight million, forty-seven thousand, six hundred fifty.

Scientific notation

• Scientific notation: 1.3804765 × 10⁸

Factors of 138047650

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 68

Divisors of 138047650

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 5 10 13 17 25 26 31 34 50 62 65 85 130 155 169 170 221 310 325 338 403 425 442 527 650 775 806 845 850 961 1054 1105 1550 1690 1922 2015 2210 2635 2873 4030 4225 4805 5239 5270 5525 5746 6851 8450 9610 10075 10478 11050 12493 13175 13702 14365 16337 20150 24025 24986 26195 26350 28730 32674 34255 48050 52390 62465 68510 71825 81685 89063 124930 130975 143650 162409 163370 171275 178126 212381 261950 312325 324818 342550 408425 424762 445315 624650 812045 816850 890630 1061905 1624090 2123810 2226575 2760953 4060225 4453150 5309525 5521906 8120450 10619050 13804765 27609530 69023825 138047650
• Sum of all divisors σ(n): 304197606
• Sum of proper divisors (its aliquot sum) s(n): 166149956
• 138047650 is an abundant number, because the sum of its proper divisors (166149956) is greater than itself. Its abundance is 28102306

Bases of 138047650

• Binary: 1000001110100111000010100010₂
• Hexadecimal: 0x83A70A2
• Base-36: 2A6U8Y

Squares and roots of 138047650

• 138047650 squared (138047650²) is 19057153670522500
• 138047650 cubed (138047650³) is 2630795279904505397125000
• The square root of 138047650 is 11749.3680681133
• The cube root of 138047650 is 516.8243962873

Scales and comparisons

• 138,047,650 seconds is equal to 4 years, 20 weeks, 1 day, 18 hours, 34 minutes, 10 seconds.
• To count from 1 to 138,047,650 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 138047650 cubic inches would be around 43.1 feet tall.

Recreational maths with 138047650

• 138047650 backwards is 056740831
• 138047650 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138047650's digits is 34
• More coming soon!