18640792940

Names of 18640792940

• Cardinal: 18640792940 can be written as Eighteen billion, six hundred forty million, seven hundred ninety-two thousand, nine hundred forty.

Scientific notation

• Scientific notation: 1.864079294 × 10¹⁰

Factors of 18640792940

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1074

Divisors of 18640792940

• Number of divisors d(n): 108
• Complete list of divisors:
  1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 121 140 154 220 242 308 385 484 605 770 847 1049 1210 1540 1694 2098 2420 3388 4196 4235 5245 7343 8470 10490 11539 14686 16940 20980 23078 29372 36715 46156 57695 73430 80773 115390 126929 146860 161546 230780 253858 323092 403865 507716 634645 807730 888503 1100401 1269290 1615460 1777006 2200802 2538580 3554012 4401604 4442515 5502005 7702807 8885030 11004010 12104411 15405614 17770060 22008020 24208822 30811228 38514035 48417644 60522055 77028070 84730877 121044110 133148521 154056140 169461754 242088220 266297042 338923508 423654385 532594084 665742605 847308770 932039647 1331485210 1694617540 1864079294 2662970420 3728158588 4660198235 9320396470 18640792940
• Sum of all divisors σ(n): 49221642288
• Sum of proper divisors (its aliquot sum) s(n): 30580849348
• 18640792940 is an abundant number, because the sum of its proper divisors (30580849348) is greater than itself. Its abundance is 11940056408

Bases of 18640792940

• Binary: 10001010111000100111110110101101100₂
• Hexadecimal: 0x45713ED6C
• Base-36: 8KA8VVW

Squares and roots of 18640792940

• 18640792940 squared (18640792940²) is 347479161431953843600
• 18640792940 cubed (18640792940³) is 6477287099217885498184744184000
• The square root of 18640792940 is 136531.2892343729
• The cube root of 18640792940 is 2651.4786071367

Scales and comparisons

• 18,640,792,940 seconds is equal to 592 years, 37 weeks, 2 days, 22 hours, 2 minutes, 20 seconds.
• To count from 1 to 18,640,792,940 would take you about one thousand, one hundred eighty-five 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 18640792940 cubic inches would be around 221 feet tall.

Recreational maths with 18640792940

• 18640792940 backwards is 04929704681
• The number of decimal digits it has is: 11
• The sum of 18640792940's digits is 50
• More coming soon!