642012214690

Names of 642012214690

• Cardinal: 642012214690 can be written as Six hundred forty-two billion, twelve million, two hundred fourteen thousand, six hundred ninety.

Scientific notation

• Scientific notation: 6.4201221469 × 10¹¹

Factors of 642012214690

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 7900

Divisors of 642012214690

• Number of divisors d(n): 128
• Complete list of divisors:
  1 2 5 7 10 11 14 22 35 55 70 77 110 149 154 298 385 745 770 809 1043 1490 1618 1639 2086 3278 4045 5215 5663 6917 8090 8195 8899 10430 11326 11473 13834 16390 17798 22946 28315 34585 44495 48419 56630 57365 62293 69170 76087 88990 96838 114730 120541 124586 152174 241082 242095 311465 380435 484190 532609 602705 622930 760870 843787 1030633 1065218 1205410 1325951 1687574 2061266 2651902 2663045 4218935 5153165 5326090 5595853 6629755 7214431 8437870 9281657 10306330 11191706 11336963 13259510 14428862 18563314 22673926 27979265 36072155 39170971 46408285 55958530 56684815 61554383 72144310 78341942 79358741 92816570 113369630 123108766 158717482 195854855 307771915 391709710 396793705 430880681 615543830 793587410 833782097 861761362 1667564194 2154403405 4168910485 4308806810 5836474679 8337820970 9171603067 11672949358 18343206134 29182373395 45858015335 58364746790 64201221469 91716030670 128402442938 321006107345 642012214690
• Sum of all divisors σ(n): 1452447936000
• Sum of proper divisors (its aliquot sum) s(n): 810435721310
• 642012214690 is an abundant number, because the sum of its proper divisors (810435721310) is greater than itself. Its abundance is 168423506620

Bases of 642012214690

• Binary: 1001010101111010111010001111010110100010₂
• Hexadecimal: 0x957AE8F5A2
• Base-36: 86XPHVAA

Squares and roots of 642012214690

• 642012214690 squared (642012214690²) is 412179683811158651796100
• 642012214690 cubed (642012214690³) is 264624391653825905774568707304709000
• The square root of 642012214690 is 801256.6472048765
• The cube root of 642012214690 is 8626.7609469063

Scales and comparisons

• 642,012,214,690 seconds is equal to 20,414 years, 22 hours, 18 minutes, 10 seconds.
• To count from 1 to 642,012,214,690 would take you about forty thousand, eight hundred twenty-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 642012214690 cubic inches would be around 718.9 feet tall.

Recreational maths with 642012214690

• 642012214690 backwards is 096412210246
• The number of decimal digits it has is: 12
• The sum of 642012214690's digits is 37
• More coming soon!