12838173894

Names of 12838173894

• Cardinal: 12838173894 can be written as Twelve billion, eight hundred thirty-eight million, one hundred seventy-three thousand, eight hundred ninety-four.

Scientific notation

• Scientific notation: 1.2838173894 × 10¹⁰

Factors of 12838173894

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 5178

Divisors of 12838173894

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 6 7 9 13 14 18 21 26 27 39 42 54 63 78 81 91 117 126 162 169 182 189 234 273 338 351 378 507 546 567 702 819 1014 1053 1134 1183 1521 1638 2106 2197 2366 2457 3042 3549 4394 4563 4914 5153 6591 7098 7371 9126 10306 10647 13182 13689 14742 15379 15459 19773 21294 27378 30758 30918 31941 36071 39546 46137 46377 59319 63882 66989 72142 92274 92754 95823 108213 118638 133978 138411 139131 177957 191646 200967 216426 276822 278262 324639 355914 401934 415233 417393 468923 602901 649278 830466 834786 870857 937846 973917 1205802 1245699 1406769 1741714 1808703 1947834 2491398 2612571 2813538 2921751 3617406 4220307 5225142 5426109 5843502 6095999 7837713 8440614 10852218 11321141 12191998 12660921 15675426 18287997 22642282 23513139 25321842 33963423 36575994 37982763 47026278 54863991 67926846 70539417 75965526 79247987 101890269 109727982 141078834 158495974 164591973 203780538 237743961 305670807 329183946 475487922 493775919 611341614 713231883 917012421 987551838 1426463766 1834024842 2139695649 4279391298 6419086947 12838173894
• Sum of all divisors σ(n): 35621974080
• Sum of proper divisors (its aliquot sum) s(n): 22783800186
• 12838173894 is an abundant number, because the sum of its proper divisors (22783800186) is greater than itself. Its abundance is 9945626292

Bases of 12838173894

• Binary: 1011111101001101101111110011000110₂
• Hexadecimal: 0x2FD36FCC6
• Base-36: 5WBIMDI

Squares and roots of 12838173894

• 12838173894 squared (12838173894²) is 164818708932583123236
• 12838173894 cubed (12838173894³) is 2115971246261073258713400000984
• The square root of 12838173894 is 113305.6657630147
• The cube root of 12838173894 is 2341.5373231283

Scales and comparisons

• 12,838,173,894 seconds is equal to 408 years, 11 weeks, 23 hours, 24 minutes, 54 seconds.
• To count from 1 to 12,838,173,894 would take you about 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 12838173894 cubic inches would be around 195.1 feet tall.

Recreational maths with 12838173894

• 12838173894 backwards is 49837183821
• 12838173894 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 12838173894's digits is 54
• More coming soon!