138642469875

Names of 138642469875

• Cardinal: 138642469875 can be written as One hundred thirty-eight billion, six hundred forty-two million, four hundred sixty-nine thousand, eight hundred seventy-five.

Scientific notation

• Scientific notation: 1.38642469875 × 10¹¹

Factors of 138642469875

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 238

Divisors of 138642469875

• Number of divisors d(n): 288
• Complete list of divisors:
  1 3 5 7 9 13 15 21 25 35 39 45 61 63 65 75 91 105 117 125 149 175 183 195 225 273 305 315 325 375 427 447 455 525 549 585 745 793 819 875 915 975 1043 1125 1281 1341 1365 1525 1575 1625 1937 2135 2235 2275 2379 2625 2745 2925 3129 3725 3843 3965 4095 4575 4875 5215 5551 5811 6405 6705 6825 7137 7625 7875 9089 9387 9685 10675 11175 11375 11895 13559 13725 14625 15645 16653 17433 18625 19215 19825 20475 22201 22875 26075 27267 27755 29055 32025 33525 34125 35685 40677 45445 46935 48425 49959 53375 55875 59475 63623 66603 67795 68625 78225 81801 83265 87165 96075 99125 102375 111005 118157 122031 130375 136335 138775 145275 155407 160125 167625 178425 190869 199809 203385 227225 234675 242125 249795 288613 297375 318115 333015 338975 354471 391125 409005 416325 435825 466221 480375 555025 572607 590785 610155 681675 693875 726375 777035 827099 865839 892125 954345 999045 1016925 1063413 1136125 1173375 1248975 1354261 1398663 1443065 1590575 1665075 1694875 1772355 2020291 2045025 2081625 2179125 2331105 2481297 2597517 2775125 2863035 2953925 3050775 3408375 3885175 4062783 4135495 4329195 4771725 4995225 5084625 5317065 6060873 6244875 6771305 6993315 7215325 7443891 7952875 8325375 8861775 9479827 10101455 10225125 11655525 12188349 12406485 12987585 14315175 14769625 15253875 17605393 18182619 19425875 20313915 20677475 21645975 23858625 24976125 26585325 28439481 30304365 33856525 34966575 36076625 37219455 44308875 47399135 50507275 52816179 58277625 60941745 62032425 64937925 71575875 85318443 88026965 90913095 101569575 103387375 108229875 123237751 132926625 142197405 151521825 158448537 169282625 174832875 186097275 236995675 252536375 264080895 304708725 310162125 324689625 369713253 426592215 440134825 454565475 507847875 616188755 710987025 757609125 792242685 930486375 1109139759 1184978375 1320404475 1523543625 1848566265 2132961075 2200674125 2272827375 3080943775 3554935125 3961213425 5545698795 6602022375 9242831325 10664805375 15404718875 19806067125 27728493975 46214156625 138642469875
• Sum of all divisors σ(n): 314756437632
• Sum of proper divisors (its aliquot sum) s(n): 176113967757
• 138642469875 is an abundant number, because the sum of its proper divisors (176113967757) is greater than itself. Its abundance is 37471497882

Bases of 138642469875

• Binary: 10000001000111101111000011001111110011₂
• Hexadecimal: 0x2047BC33F3
• Base-36: 1ROW5AER

Squares and roots of 138642469875

• 138642469875 squared (138642469875²) is 19221734453040282515625
• 138642469875 cubed (138642469875³) is 2664948739850886970834028279296875
• The square root of 138642469875 is 372347.2436785319
• The cube root of 138642469875 is 5175.6563054761

Scales and comparisons

• 138,642,469,875 seconds is equal to 4,408 years, 20 weeks, 6 days, 5 hours, 11 minutes, 15 seconds.
• To count from 1 to 138,642,469,875 would take you about eight thousand, eight hundred sixteen 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 138642469875 cubic inches would be around 431.3 feet tall.

Recreational maths with 138642469875

• 138642469875 backwards is 578964246831
• 138642469875 is a Harshad number.
• The number of decimal digits it has is: 12
• The sum of 138642469875's digits is 63
• More coming soon!