18231199457115681

Names of 18231199457115681

• Cardinal: 18231199457115681 can be written as Eighteen quadrillion, two hundred thirty-one trillion, one hundred ninety-nine billion, four hundred fifty-seven million, one hundred fifteen thousand, six hundred eighty-one.

Scientific notation

• Scientific notation: 1.8231199457115681 × 10¹⁶

Factors of 18231199457115681

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 16724

Divisors of 18231199457115681

• Number of divisors d(n): 135
• Complete list of divisors:
  1 3 9 17 27 51 53 81 153 159 289 459 477 867 901 1377 1431 2601 2703 2809 4293 7803 8109 8427 15317 16651 23409 24327 25281 45951 47753 49953 72981 75843 137853 143259 149859 227529 283067 413559 429777 449577 811801 849201 882503 1240677 1289331 1348731 2435403 2547603 2647509 3867993 4812139 7306209 7642809 7942527 14436417 15002551 21918627 22928427 23827581 43309251 45007653 46772659 65755881 71482743 129927753 135022959 140317977 255043367 277255801 389783259 405068877 420953931 765130101 795135203 831767403 1215206631 1262861793 2295390303 2385405609 2495302209 3788585379 4713348617 6886170909 7156216827 7485906627 13517298451 14140045851 14694557453 20658512727 21468650481 22457719881 40551895353 42420137553 44083672359 64405951443 80126926489 121655686059 127260412659 132251017077 240380779467 249807476701 364967058177 381781237977 396753051231 721142338401 749422430103 778811545009 1094901174531 1190259153693 2163427015203 2248267290309 2336434635027 4246727103917 6490281045609 6744801870927 7009303905081 12740181311751 13239796265153 20234405612781 21027911715243 38220543935253 39719388795459 63083735145729 114661631805759 119158166386377 225076536507601 343984895417277 357474499159131 675229609522803 1072423497477393 2025688828568409 6077066485705227 18231199457115681
• Sum of all divisors σ(n): 29488441380585033
• Sum of proper divisors (its aliquot sum) s(n): 11257241923469352
• 18231199457115681 is a deficient number, because the sum of its proper divisors (11257241923469352) is less than itself. Its deficiency is 6973957533646329

Bases of 18231199457115681

• Binary: 1000000110001010010110111100111011110000111111000100001₂
• Hexadecimal: 0x40C52DE7787E21
• Base-36: 4ZIF5EP5929

Squares and roots of 18231199457115681

• 18231199457115681 squared (18231199457115681²) is 332376633645135101617783816093761
• 18231199457115681 cubed (18231199457115681³) is 6059624702869124656662483003202210253917319366241
• 18231199457115681 is a perfect square number. Its square root is 135022959
• The cube root of 18231199457115681 is 263191.4322705185

Scales and comparisons

• 18,231,199,457,115,681 seconds is equal to 579,695,749 years, 48 weeks, 3 days, 21 hours, 1 minute, 21 seconds.
• To count from 1 to 18,231,199,457,115,681 would take you about one billion, seven hundred thirty-nine million, eighty-seven thousand, two hundred forty-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 18231199457115681 cubic inches would be around 21932.6 feet tall.

Recreational maths with 18231199457115681

• 18231199457115681 backwards is 18651175499113281
• The number of decimal digits it has is: 17
• The sum of 18231199457115681's digits is 72
• More coming soon!