18380239668

Names of 18380239668

• Cardinal: 18380239668 can be written as Eighteen billion, three hundred eighty million, two hundred thirty-nine thousand, six hundred sixty-eight.

Scientific notation

• Scientific notation: 1.8380239668 × 10¹⁰

Factors of 18380239668

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 998

Divisors of 18380239668

• Number of divisors d(n): 162
• Complete list of divisors:
  1 2 3 4 6 7 9 12 14 18 21 28 36 42 49 63 84 98 109 126 147 196 218 252 294 327 436 441 588 654 763 877 882 981 1308 1526 1754 1764 1962 2289 2631 3052 3508 3924 4578 5262 5341 6139 6867 7893 9156 10524 10682 11881 12278 13734 15786 16023 18417 21364 23762 24556 27468 31572 32046 35643 36834 42973 47524 48069 55251 64092 71286 73668 83167 85946 95593 96138 106929 110502 128919 142572 166334 171892 191186 192276 213858 221004 249501 257838 286779 332668 382372 386757 427716 499002 515676 573558 582169 669151 748503 773514 860337 998004 1147116 1164338 1338302 1497006 1547028 1720674 1746507 2007453 2328676 2676604 2994012 3441348 3493014 4014906 4684057 5239521 6022359 6986028 8029812 9368114 10419637 10479042 12044718 14052171 18736228 20839274 20958084 24089436 28104342 31258911 41678548 42156513 56208684 62517822 72937459 84313026 93776733 125035644 145874918 168626052 187553466 218812377 291749836 375106932 437624754 510562213 656437131 875249508 1021124426 1312874262 1531686639 2042248852 2625748524 3063373278 4595059917 6126746556 9190119834 18380239668
• Sum of all divisors σ(n): 54609244326
• Sum of proper divisors (its aliquot sum) s(n): 36229004658
• 18380239668 is an abundant number, because the sum of its proper divisors (36229004658) is greater than itself. Its abundance is 17848764990

Bases of 18380239668

• Binary: 10001000111100011000011001100110100₂
• Hexadecimal: 0x4478C3334
• Base-36: 8FZ4BP0

Squares and roots of 18380239668

• 18380239668 squared (18380239668²) is 337833210253120750224
• 18380239668 cubed (18380239668³) is 6209455372262194334061084685632
• The square root of 18380239668 is 135573.7425462615
• The cube root of 18380239668 is 2639.0668413393

Scales and comparisons

• 18,380,239,668 seconds is equal to 584 years, 22 weeks, 4 days, 6 hours, 7 minutes, 48 seconds.
• To count from 1 to 18,380,239,668 would take you about one thousand, one hundred sixty-eight 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 18380239668 cubic inches would be around 219.9 feet tall.

Recreational maths with 18380239668

• 18380239668 backwards is 86693208381
• The number of decimal digits it has is: 11
• The sum of 18380239668's digits is 54
• More coming soon!