18237805642

Names of 18237805642

• Cardinal: 18237805642 can be written as Eighteen billion, two hundred thirty-seven million, eight hundred five thousand, six hundred forty-two.

Scientific notation

• Scientific notation: 1.8237805642 × 10¹⁰

Factors of 18237805642

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 6983

Divisors of 18237805642

• Number of divisors d(n): 64
• Complete list of divisors:
  1 2 7 14 37 71 73 74 142 146 259 497 511 518 994 1022 2627 2701 5183 5254 5402 6793 10366 13586 18389 18907 36281 36778 37814 47551 72562 95102 191771 251341 383542 482303 495889 502682 964606 991778 1342397 1759387 2684794 3376121 3471223 3518774 6752242 6942446 17845211 18347893 35208119 35690422 36695786 70416238 124916477 128435251 246456833 249832954 256870502 492913666 1302700403 2605400806 9118902821 18237805642
• Sum of all divisors σ(n): 33012969984
• Sum of proper divisors (its aliquot sum) s(n): 14775164342
• 18237805642 is a deficient number, because the sum of its proper divisors (14775164342) is less than itself. Its deficiency is 3462641300

Bases of 18237805642

• Binary: 10000111111000011101101010001001010₂
• Hexadecimal: 0x43F0ED44A
• Base-36: 8DMBGWA

Squares and roots of 18237805642

• 18237805642 squared (18237805642²) is 332617554635367032164
• 18237805642 cubed (18237805642³) is 6066214314557140111941394669288
• The square root of 18237805642 is 135047.4199753551
• The cube root of 18237805642 is 2632.2321809825

Scales and comparisons

• 18,237,805,642 seconds is equal to 579 years, 47 weeks, 17 hours, 7 minutes, 22 seconds.
• To count from 1 to 18,237,805,642 would take you about one thousand, one hundred fifty-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 18237805642 cubic inches would be around 219.4 feet tall.

Recreational maths with 18237805642

• 18237805642 backwards is 24650873281
• The number of decimal digits it has is: 11
• The sum of 18237805642's digits is 46
• More coming soon!