138240270

Names of 138240270

• Cardinal: 138240270 can be written as One hundred thirty-eight million, two hundred forty thousand, two hundred seventy.

Scientific notation

• Scientific notation: 1.3824027 × 10⁸

Factors of 138240270

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 60

Divisors of 138240270

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 5 6 7 9 10 14 15 18 21 27 30 35 42 43 45 49 54 63 70 81 86 90 98 105 126 129 135 147 162 189 210 215 243 245 258 270 294 301 315 378 387 405 430 441 486 490 567 602 630 645 729 735 774 810 882 903 945 1134 1161 1215 1290 1323 1458 1470 1505 1701 1806 1890 1935 2107 2187 2205 2322 2430 2646 2709 2835 3010 3402 3483 3645 3870 3969 4214 4374 4410 4515 5103 5418 5670 5805 6321 6561 6615 6966 7290 7938 8127 8505 9030 10206 10449 10535 10935 11610 11907 12642 13122 13230 13545 15309 16254 17010 17415 18963 19845 20898 21070 21870 23814 24381 25515 27090 30618 31347 31605 32805 34830 35721 37926 39690 40635 45927 48762 51030 52245 56889 59535 62694 63210 65610 71442 73143 76545 81270 91854 94041 94815 104490 107163 113778 119070 121905 146286 153090 156735 170667 178605 188082 189630 214326 219429 229635 243810 282123 284445 313470 321489 341334 357210 365715 438858 459270 470205 512001 535815 564246 568890 642978 658287 731430 853335 940410 1024002 1071630 1097145 1316574 1410615 1536003 1607445 1706670 1974861 2194290 2560005 2821230 3072006 3214890 3291435 3949722 4608009 5120010 6582870 7680015 9216018 9874305 13824027 15360030 19748610 23040045 27648054 46080090 69120135 138240270
• Sum of all divisors σ(n): 444262104
• Sum of proper divisors (its aliquot sum) s(n): 306021834
• 138240270 is an abundant number, because the sum of its proper divisors (306021834) is greater than itself. Its abundance is 167781564

Bases of 138240270

• Binary: 1000001111010110000100001110₂
• Hexadecimal: 0x83D610E
• Base-36: 2AAYVI

Squares and roots of 138240270

• 138240270 squared (138240270²) is 19110372249672900
• 138240270 cubed (138240270³) is 2641823019595289107683000
• The square root of 138240270 is 11757.5622473369
• The cube root of 138240270 is 517.0646622379

Scales and comparisons

• 138,240,270 seconds is equal to 4 years, 20 weeks, 4 days, 4 minutes, 30 seconds.
• To count from 1 to 138,240,270 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 138240270 cubic inches would be around 43.1 feet tall.

Recreational maths with 138240270

• 138240270 backwards is 072042831
• 138240270 is a Harshad number.
• The number of decimal digits it has is: 9
• The sum of 138240270's digits is 27
• More coming soon!