18007485537117545290

Names of 18007485537117545290

• Cardinal: 18007485537117545290 can be written as Eighteen quintillion, seven quadrillion, four hundred eighty-five trillion, five hundred thirty-seven billion, one hundred seventeen million, five hundred forty-five thousand, two hundred ninety.

Scientific notation

• Scientific notation: 1.800748553711754529 × 10¹⁹

Factors of 18007485537117545290

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 8
• Sum of prime factors: 1110

Divisors of 18007485537117545290

• Number of divisors d(n): 28
• Complete list of divisors:
  1 2 5 10 1103 2206 5515 11030 1216609 2433218 6083045 12166090 1341919727 2683839454 6709598635 13419197270 1480137458881 2960274917762 7400687294405 14801374588810 1632591617145743 3265183234291486 8162958085728715 16325916171457430 1800748553711754529 3601497107423509058 9003742768558772645 18007485537117545290
• Sum of all divisors σ(n): 32442887282570938674
• Sum of proper divisors (its aliquot sum) s(n): 14435401745453393384
• 18007485537117545290 is a deficient number, because the sum of its proper divisors (14435401745453393384) is less than itself. Its deficiency is 3572083791664151906

Bases of 18007485537117545290

• Binary: 1111100111100111011100001011000000110001111000000010001101001010₂
• Hexadecimal: 0xF9E770B031E0234A
• Base-36: 3ST8WVG8L8I8A

Squares and roots of 18007485537117545290

• 18007485537117545290 squared (18007485537117545290²) is 324269535369497568588248758355201184100
• 18007485537117545290 cubed (18007485537117545290³) is 5839278968294053773882727873093493822299026407893377889000
• The square root of 18007485537117545290 is 4243522774.4313503673
• The cube root of 18007485537117545290 is 2621104.6338050001
• Being both a perfect square and a perfect cube, 18007485537117545290 is also a perfect sixth number.

Scales and comparisons

• 18,007,485,537,117,545,290 seconds is equal to 293,274,701,009 years, 3 weeks, 3 days, 15 hours, 30 minutes, 7 seconds.
• To count from 1 to 18,007,485,537,117,545,290 would take you about two hundred ninety-three billion, two hundred seventy-four million, seven hundred one thousand and 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 18007485537117545290 cubic inches would be around 218425.4 feet tall.

Recreational maths with 18007485537117545290

• 18007485537117545290 backwards is 09254571173558470081
• The number of decimal digits it has is: 20
• The sum of 18007485537117545290's digits is 82
• More coming soon!