28378829115

Names of 28378829115

• Cardinal: 28378829115 can be written as Twenty-eight billion, three hundred seventy-eight million, eight hundred twenty-nine thousand, one hundred fifteen.

Scientific notation

• Scientific notation: 2.8378829115 × 10¹⁰

Factors of 28378829115

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 126

Divisors of 28378829115

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 7 9 13 15 19 21 27 35 39 45 57 63 65 79 81 91 95 105 117 133 135 171 189 195 237 243 247 273 285 315 351 361 395 399 405 455 513 553 567 585 665 711 729 741 819 855 945 1027 1053 1083 1185 1197 1215 1235 1365 1501 1539 1659 1701 1729 1755 1805 1995 2133 2187 2223 2457 2527 2565 2765 2835 3081 3159 3249 3555 3591 3645 3705 4095 4503 4617 4693 4977 5103 5135 5187 5265 5415 5985 6399 6669 7189 7371 7505 7581 7695 8295 8505 8645 9243 9477 9747 10507 10665 10773 10935 11115 12285 12635 13509 13851 14079 14931 15309 15405 15561 15795 16245 17955 19197 19513 20007 21567 22113 22515 22743 23085 23465 24885 25515 25935 27729 28431 28519 29241 31521 31995 32319 32851 33345 35945 36855 37905 40527 41553 42237 44793 46215 46683 47385 48735 52535 53865 57591 58539 60021 64701 66339 67545 68229 69255 70395 74655 76545 77805 83187 85557 87723 94563 95985 96957 97565 98553 100035 107835 110565 113715 121581 126711 134379 136591 138645 140049 142155 142595 146205 157605 161595 164255 172773 175617 180063 194103 199017 199633 202635 204687 207765 211185 223965 233415 249561 256671 263169 283689 287955 290871 292695 295659 300105 323505 331695 341145 364743 370747 380133 403137 409773 415935 420147 427785 438615 472815 484785 492765 526851 540189 582309 598899 607905 614061 633555 671895 682955 700245 748683 770013 789507 851067 863865 878085 886977 900315 970515 995085 998165 1023435 1094229 1112241 1140399 1209411 1229319 1247805 1260441 1283355 1315845 1418445 1454355 1478295 1580553 1746927 1796697 1823715 1842183 1853735 1900665 2015685 2048865 2100735 2246049 2310039 2553201 2595229 2634255 2660931 2700945 2911545 2994495 3070305 3282687 3336723 3421197 3687957 3743415 3781323 3850065 3947535 4255335 4434885 4741659 5240781 5390091 5471145 5526549 5561205 5701995 6047055 6146595 6302205 6930117 7659603 7785687 7902765 7982793 8734635 8983485 9210915 10010169 10263591 11063871 11230245 11550195 12766005 12976145 13304655 14224977 15722343 16170273 16413435 16683615 17105985 18439785 18906615 20790351 22978809 23357061 23708295 23948379 26203905 26950455 27632745 30030507 33191613 34650585 38298015 38928435 39913965 42674931 48510819 50050845 51317955 55319355 62371053 70071183 71124885 71845137 78611715 80851365 90091521 99574839 103951755 114894045 116785305 119741895 145532457 150152535 165958065 210213549 213374655 242554095 270274563 298724517 311855265 350355915 359225685 436597371 450457605 497874195 630640647 727662285 810823689 1051067745 1351372815 1493622585 1891921941 2182986855 3153203235 4054118445 5675765823 9459609705 28378829115
• Sum of all divisors σ(n): 67182796800
• Sum of proper divisors (its aliquot sum) s(n): 38803967685
• 28378829115 is an abundant number, because the sum of its proper divisors (38803967685) is greater than itself. Its abundance is 10425138570

Bases of 28378829115

• Binary: 11010011011100000101001000100111011₂
• Hexadecimal: 0x69B82913B
• Base-36: D1C0SOR

Squares and roots of 28378829115

• 28378829115 squared (28378829115²) is 805357941938371683225
• 28378829115 cubed (28378829115³) is 22855115410677141859597187095875
• The square root of 28378829115 is 168460.1707080935
• The cube root of 28378829115 is 3050.2222937507

Scales and comparisons

• 28,378,829,115 seconds is equal to 902 years, 18 weeks, 4 days, 16 hours, 5 minutes, 15 seconds.
• To count from 1 to 28,378,829,115 would take you about one thousand, eight hundred four 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 28378829115 cubic inches would be around 254.2 feet tall.

Recreational maths with 28378829115

• 28378829115 backwards is 51192887382
• The number of decimal digits it has is: 11
• The sum of 28378829115's digits is 54
• More coming soon!