138691255725

Names of 138691255725

• Cardinal: 138691255725 can be written as One hundred thirty-eight billion, six hundred ninety-one million, two hundred fifty-five thousand, seven hundred twenty-five.

Scientific notation

• Scientific notation: 1.38691255725 × 10¹¹

Factors of 138691255725

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 69

Divisors of 138691255725

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 5 9 11 15 19 25 27 31 33 45 55 57 75 81 93 95 99 121 135 155 165 171 209 225 275 279 285 297 341 363 405 465 475 495 513 589 605 627 675 775 825 837 855 891 961 1023 1045 1089 1395 1425 1485 1539 1705 1767 1815 1881 2025 2299 2325 2475 2511 2565 2883 2945 3025 3069 3135 3267 3751 4185 4275 4455 4805 5115 5225 5301 5445 5643 6479 6897 6975 7425 7695 8525 8649 8835 9075 9207 9405 9801 10571 11253 11495 12555 12825 14415 14725 15345 15675 15903 16335 16929 18259 18755 19437 20691 20925 22275 24025 25575 25947 26505 27225 27621 28215 29791 31713 32395 33759 34485 38475 43245 44175 46035 47025 47709 49005 52855 54777 56265 57475 58311 62073 62775 71269 72075 76725 77841 79515 81675 84645 89373 91295 93775 95139 97185 101277 103455 116281 129735 132525 138105 141075 148955 158565 161975 164331 168795 172425 174933 186219 200849 213807 216225 230175 238545 245025 264275 268119 273885 281325 285417 291555 303831 310365 327701 348843 356345 389205 397575 423225 446865 456475 475695 485925 492993 506385 517275 524799 566029 581405 602547 641421 648675 690525 744775 792825 804357 821655 843975 856251 874665 931095 983103 1004245 1046529 1069035 1192725 1340595 1369425 1427085 1457775 1478979 1519155 1551825 1638505 1698087 1744215 1781725 1807641 1924263 1946025 2209339 2234325 2378475 2413071 2464965 2531925 2623995 2830145 2907025 2949309 3012735 3139587 3207105 3604711 4021785 4108275 4281255 4373325 4655475 4915515 5021225 5094261 5232645 5345175 5422923 5772789 6226319 6628017 6702975 7135425 7394895 7595775 8192525 8490435 8721075 8847927 9038205 9418761 9621315 10814133 11046695 12065355 12324825 13119975 14150725 14746545 15063675 15282783 15697935 16035525 16268769 18023555 18678957 19884051 20108925 21406275 24577575 25471305 26163225 26543781 27114615 28863945 31131595 32442399 33140085 36974475 42452175 44239635 45191025 45848349 47093805 48106575 54070665 55233475 56036871 59652153 60326775 68489509 73732725 76413915 78489675 81343845 90117775 93394785 97327197 99420255 127356525 132718905 135573075 144319725 155657975 162211995 165700425 168110613 178956459 205468527 221198175 229241745 235469025 270353325 280184355 291981591 298260765 342447545 382069575 406719225 466973925 486635985 497101275 504331839 616405581 663594525 811059975 840553065 894782295 1027342635 1146208725 1400921775 1459907955 1491303825 1712237725 1849216743 2433179925 2521659195 3082027905 4202765325 4473911475 5136713175 5547650229 7299539775 9246083715 12608295975 15410139525 27738251145 46230418575 138691255725
• Sum of all divisors σ(n): 307152285440
• Sum of proper divisors (its aliquot sum) s(n): 168461029715
• 138691255725 is an abundant number, because the sum of its proper divisors (168461029715) is greater than itself. Its abundance is 29769773990

Bases of 138691255725

• Binary: 10000001001010101001001001110110101101₂
• Hexadecimal: 0x204AA49DAD
• Base-36: 1RPP6XT9

Squares and roots of 138691255725

• 138691255725 squared (138691255725²) is 19235264414577345275625
• 138691255725 cubed (138691255725³) is 2667762975860139011413327484203125
• The square root of 138691255725 is 372412.7491440109
• The cube root of 138691255725 is 5176.2633084663

Scales and comparisons

• 138,691,255,725 seconds is equal to 4,409 years, 49 weeks, 3 days, 20 hours, 48 minutes, 45 seconds.
• To count from 1 to 138,691,255,725 would take you about eight thousand, eight hundred nineteen 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 138691255725 cubic inches would be around 431.4 feet tall.

Recreational maths with 138691255725

• 138691255725 backwards is 527552196831
• The number of decimal digits it has is: 12
• The sum of 138691255725's digits is 54
• More coming soon!