138831337645

Names of 138831337645

• Cardinal: 138831337645 can be written as One hundred thirty-eight billion, eight hundred thirty-one million, three hundred thirty-seven thousand, six hundred forty-five.

Scientific notation

• Scientific notation: 1.38831337645 × 10¹¹

Factors of 138831337645

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 545

Divisors of 138831337645

• Number of divisors d(n): 288
• Complete list of divisors:
  1 5 7 11 13 23 29 35 49 55 65 77 91 115 143 145 161 169 203 245 253 299 319 377 385 455 457 539 637 667 715 805 845 1001 1015 1127 1183 1265 1421 1495 1595 1771 1859 1885 2093 2233 2285 2639 2695 3185 3199 3289 3335 3887 4147 4669 4901 5005 5027 5635 5915 5941 7007 7105 7337 8281 8671 8855 9295 10465 10511 11165 12397 13013 13195 13253 14651 15631 15995 16445 18473 19435 20735 22393 23023 23345 24505 25135 27209 29029 29705 32683 34307 35035 35189 36685 41405 41587 42757 43355 51359 52555 53911 60697 61985 65065 65351 66265 73255 73577 77233 78155 91091 92365 92771 95381 111965 112723 115115 115621 136045 136643 145145 145783 161161 163415 171535 172289 175945 190463 203203 207935 213785 240149 246323 256795 269555 291109 299299 303485 304819 326755 359513 367885 377377 386165 424879 455455 457457 463855 476905 515039 540631 563615 578105 649397 667667 683215 728915 789061 805805 809347 849563 861445 952315 956501 1016015 1020481 1200745 1206023 1231615 1239953 1455545 1496495 1503073 1524095 1776359 1797565 1886885 1895179 2095093 2124395 2133733 2239757 2287285 2575195 2641639 2703155 3202199 3246985 3338335 3353009 3784417 3945305 3962647 4046735 4247815 4673669 4782505 5102405 5523427 5665429 5946941 6030115 6199765 6695507 7143367 7515365 8442161 8679671 8881795 9475895 10475465 10521511 10668665 11198785 12434513 13208195 13266253 14936131 15678299 16010995 16765045 18922085 19539949 19813235 23368345 23471063 24637327 27617135 27738529 28327145 29734705 33477535 35716835 41628587 42210805 43398355 43589117 51514411 52607555 60757697 62172565 66331265 73650577 74680655 78391495 87041591 92863771 97699745 109748093 117355315 123186635 136779643 138692645 164297441 172461289 194169703 208142935 217945585 257572055 303788485 305123819 360600877 368252885 435207955 464318855 548740465 566658521 683898215 821487205 862306445 957457501 970848515 1207229023 1525619095 1803004385 2135866733 2524206139 2833292605 3966609647 4787287505 6036145115 10679333665 12621030695 19833048235 27766267529 138831337645
• Sum of all divisors σ(n): 247660312320
• Sum of proper divisors (its aliquot sum) s(n): 108828974675
• 138831337645 is a deficient number, because the sum of its proper divisors (108828974675) is less than itself. Its deficiency is 30002362970

Bases of 138831337645

• Binary: 10000001010010111111100001100010101101₂
• Hexadecimal: 0x2052FE18AD
• Base-36: 1RS0LDPP

Squares and roots of 138831337645

• 138831337645 squared (138831337645²) is 19274140312299994146025
• 138831337645 cubed (138831337645³) is 2675854681514026233818320209611125
• The square root of 138831337645 is 372600.7751535147
• The cube root of 138831337645 is 5178.0054440511

Scales and comparisons

• 138,831,337,645 seconds is equal to 4,414 years, 21 weeks, 1 day, 4 hours, 27 minutes, 25 seconds.
• To count from 1 to 138,831,337,645 would take you about eight thousand, eight hundred twenty-eight 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 138831337645 cubic inches would be around 431.5 feet tall.

Recreational maths with 138831337645

• 138831337645 backwards is 546733138831
• The number of decimal digits it has is: 12
• The sum of 138831337645's digits is 52
• More coming soon!