18388254042892909

Names of 18388254042892909

• Cardinal: 18388254042892909 can be written as Eighteen quadrillion, three hundred eighty-eight trillion, two hundred fifty-four billion, forty-two million, eight hundred ninety-two thousand, nine hundred nine.

Scientific notation

• Scientific notation: 1.8388254042892909 × 10¹⁶

Factors of 18388254042892909

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 6
• Sum of prime factors: 39722

Divisors of 18388254042892909

• Number of divisors d(n): 64
• Complete list of divisors:
  1 7 73 181 511 1267 1871 3079 13097 13213 21553 34511 92491 136583 224767 241577 338651 557299 956081 1573369 2370557 2519303 3901093 5760809 6246491 17635121 24721523 40325663 40682827 43725437 64570081 106259369 173050661 284779789 420539057 451990567 455993843 743815583 1042706429 2943773399 3191956901 4713615913 7298945003 7756933937 11687184661 19232945789 32995311391 54298537559 76117569317 81810292627 134630620523 198811279399 532822985219 853164480253 1391678955793 1404005042597 5972151361771 9828035298179 14513223396127 35984841571219 101592563772889 251893890998533 2626893434698987 18388254042892909
• Sum of all divisors σ(n): 21439753280225280
• Sum of proper divisors (its aliquot sum) s(n): 3051499237332371
• 18388254042892909 is a deficient number, because the sum of its proper divisors (3051499237332371) is less than itself. Its deficiency is 15336754805560538

Bases of 18388254042892909

• Binary: 1000001010101000000010100000110010001000010101001101101₂
• Hexadecimal: 0x41540506442A6D
• Base-36: 5123BAEHKZ1

Squares and roots of 18388254042892909

• 18388254042892909 squared (18388254042892909²) is 338127886745967412821573642482281
• 18388254042892909 cubed (18388254042892909³) is 6217581480471370939243039172790565011165013045429
• The square root of 18388254042892909 is 135603296.5782650471
• The cube root of 18388254042892909 is 263945.0358240499

Scales and comparisons

• 18,388,254,042,892,909 seconds is equal to 584,689,599 years, 49 weeks, 6 days, 8 hours, 1 minute, 49 seconds.
• To count from 1 to 18,388,254,042,892,909 would take you about one billion, seven hundred fifty-four million, sixty-eight thousand, seven hundred ninety-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 18388254042892909 cubic inches would be around 21995.4 feet tall.

Recreational maths with 18388254042892909

• 18388254042892909 backwards is 90929824045288381
• The number of decimal digits it has is: 17
• The sum of 18388254042892909's digits is 82
• More coming soon!