138868712268

Names of 138868712268

• Cardinal: 138868712268 can be written as One hundred thirty-eight billion, eight hundred sixty-eight million, seven hundred twelve thousand, two hundred sixty-eight.

Scientific notation

• Scientific notation: 1.38868712268 × 10¹¹

Factors of 138868712268

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 6203

Divisors of 138868712268

• Number of divisors d(n): 144
• Complete list of divisors:
  1 2 3 4 6 11 12 13 22 26 33 39 44 52 66 78 121 132 143 156 242 286 363 429 484 572 726 858 1452 1573 1613 1716 3146 3226 4561 4719 4839 6292 6452 9122 9438 9678 13683 17743 18244 18876 19356 20969 27366 35486 41938 50171 53229 54732 59293 62907 70972 83876 100342 106458 118586 125814 150513 177879 195173 200684 212916 230659 237172 251628 301026 355758 390346 461318 551881 585519 602052 652223 691977 711516 780692 922636 1103762 1171038 1304446 1383954 1655643 1956669 2207524 2342076 2537249 2608892 2767908 3311286 3913338 5074498 6622572 7174453 7356893 7611747 7826676 10148996 14348906 14713786 15223494 21523359 22070679 28697812 29427572 30446988 43046718 44141358 80925823 86093436 88282716 95639609 161851646 191279218 242777469 286918827 323703292 382558436 485554938 573837654 890184053 971109876 1052035699 1147675308 1780368106 2104071398 2670552159 3156107097 3560736212 4208142796 5341104318 6312214194 10682208636 11572392689 12624428388 23144785378 34717178067 46289570756 69434356134 138868712268
• Sum of all divisors σ(n): 383880913248
• Sum of proper divisors (its aliquot sum) s(n): 245012200980
• 138868712268 is an abundant number, because the sum of its proper divisors (245012200980) is greater than itself. Its abundance is 106143488712

Bases of 138868712268

• Binary: 10000001010101001110000110001101001100₂
• Hexadecimal: 0x205538634C
• Base-36: 1RSMUG5O

Squares and roots of 138868712268

• 138868712268 squared (138868712268²) is 19284519246972573703824
• 138868712268 cubed (138868712268³) is 2678016354534542367763758107312832
• The square root of 138868712268 is 372650.9254892573
• The cube root of 138868712268 is 5178.4700573027

Scales and comparisons

• 138,868,712,268 seconds is equal to 4,415 years, 30 weeks, 6 days, 18 hours, 17 minutes, 48 seconds.
• To count from 1 to 138,868,712,268 would take you about eight thousand, eight hundred thirty-one 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 138868712268 cubic inches would be around 431.5 feet tall.

Recreational maths with 138868712268

• 138868712268 backwards is 862217868831
• The number of decimal digits it has is: 12
• The sum of 138868712268's digits is 60
• More coming soon!