72138510834

Names of 72138510834

• Cardinal: 72138510834 can be written as Seventy-two billion, one hundred thirty-eight million, five hundred ten thousand, eight hundred thirty-four.

Scientific notation

• Scientific notation: 7.2138510834 × 10¹⁰

Factors of 72138510834

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 11652

Divisors of 72138510834

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 3 6 13 26 37 39 41 53 74 78 82 106 111 123 159 222 246 318 481 533 689 962 1066 1378 1443 1517 1599 1961 2067 2173 2886 3034 3198 3922 4134 4346 4551 5883 6519 9102 11503 11766 13038 19721 23006 25493 28249 34509 39442 50986 56498 59163 69018 76479 80401 84747 118326 149539 152958 160802 169494 241203 299078 425611 448617 471623 482406 609659 851222 897234 943246 1045213 1219318 1276833 1414869 1828977 2090426 2553666 2829738 3135639 3657954 5532943 6131099 6271278 7925567 11065886 12262198 15851134 16598829 17450051 18393297 22557383 23776701 24996019 33197658 34900102 36786594 45114766 47553402 49992038 52350153 67672149 74988057 104700306 135344298 149976114 226850663 293245979 324948247 453701326 586491958 649896494 680551989 879737937 924852703 974844741 1361103978 1759475874 1849705406 1949689482 2774558109 5549116218 12023085139 24046170278 36069255417 72138510834
• Sum of all divisors σ(n): 166565403648
• Sum of proper divisors (its aliquot sum) s(n): 94426892814
• 72138510834 is an abundant number, because the sum of its proper divisors (94426892814) is greater than itself. Its abundance is 22288381980

Bases of 72138510834

• Binary: 1000011001011110010100101000111110010₂
• Hexadecimal: 0x10CBCA51F2
• Base-36: X51EN76

Squares and roots of 72138510834

• 72138510834 squared (72138510834²) is 5203964745347135375556
• 72138510834 cubed (72138510834³) is 375406267161978376380411164773704
• The square root of 72138510834 is 268586.1329890283
• The cube root of 72138510834 is 4162.8336608077

Scales and comparisons

• 72,138,510,834 seconds is equal to 2,293 years, 40 weeks, 4 days, 11 hours, 13 minutes, 54 seconds.
• To count from 1 to 72,138,510,834 would take you about four thousand, five hundred eighty-seven 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 72138510834 cubic inches would be around 346.9 feet tall.

Recreational maths with 72138510834

• 72138510834 backwards is 43801583127
• The number of decimal digits it has is: 11
• The sum of 72138510834's digits is 42
• More coming soon!