138220969684

Names of 138220969684

• Cardinal: 138220969684 can be written as One hundred thirty-eight billion, two hundred twenty million, nine hundred sixty-nine thousand, six hundred eighty-four.

Scientific notation

• Scientific notation: 1.38220969684 × 10¹¹

Factors of 138220969684

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 16325

Divisors of 138220969684

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 7 14 28 49 98 127 196 254 343 508 686 889 1372 1778 2401 3556 4802 6223 9604 12446 16189 16807 24892 32378 33614 43561 64756 67228 87122 113323 174244 226646 304927 453292 609854 793261 1219708 1586522 2056003 2134489 3173044 4112006 4268978 5552827 8224012 8537956 11105654 14392021 22211308 28784042 38869789 57568084 77739578 100744147 155479156 201488294 272088523 402976588 544177046 705209029 1088354092 1410418058 2820836116 4936463203 9872926406 19745852812 34555242421 69110484842 138220969684
• Sum of all divisors σ(n): 284438353920
• Sum of proper divisors (its aliquot sum) s(n): 146217384236
• 138220969684 is an abundant number, because the sum of its proper divisors (146217384236) is greater than itself. Its abundance is 7996414552

Bases of 138220969684

• Binary: 10000000101110100111001001111011010100₂
• Hexadecimal: 0x202E9C9ED4
• Base-36: 1RHX72S4

Squares and roots of 138220969684

• 138220969684 squared (138220969684²) is 19105036460385247059856
• 138220969684 cubed (138220969684³) is 2640716665402623900821206309405504
• The square root of 138220969684 is 371780.8086547771
• The cube root of 138220969684 is 5170.4059791411

Scales and comparisons

• 138,220,969,684 seconds is equal to 4,394 years, 51 weeks, 6 days, 17 hours, 48 minutes, 4 seconds.
• To count from 1 to 138,220,969,684 would take you about eight thousand, seven hundred eighty-nine 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 138220969684 cubic inches would be around 430.9 feet tall.

Recreational maths with 138220969684

• 138220969684 backwards is 486969022831
• The number of decimal digits it has is: 12
• The sum of 138220969684's digits is 58
• More coming soon!