18899209686942

Names of 18899209686942

• Cardinal: 18899209686942 can be written as Eighteen trillion, eight hundred ninety-nine billion, two hundred nine million, six hundred eighty-six thousand, nine hundred forty-two.

Scientific notation

• Scientific notation: 1.8899209686942 × 10¹³

Factors of 18899209686942

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 10
• Sum of prime factors: 6819

Divisors of 18899209686942

• Number of divisors d(n): 240
• Complete list of divisors:
  1 2 3 6 9 13 18 26 27 39 54 61 78 81 117 122 162 169 183 234 338 351 366 507 549 702 793 1014 1053 1098 1521 1586 1647 2106 2379 3042 3169 3294 3571 4563 4758 4941 6338 7137 7142 9126 9507 9882 10309 10713 13689 14274 19014 20618 21411 21426 27378 28521 30927 32139 41197 42822 46423 57042 61854 64233 64278 82394 85563 92781 92846 96417 123591 128466 139269 171126 185562 192834 193309 217831 247182 256689 278343 278538 289251 370773 386618 417807 435662 513378 535561 556686 578502 579927 603499 653493 741546 835029 835614 1071122 1112319 1159854 1206998 1253421 1306986 1606683 1670058 1739781 1810497 1960479 2224638 2506842 2513017 2831803 3213366 3336957 3479562 3620994 3760263 3920958 4820049 5026034 5219343 5431491 5663606 5881437 6673914 7520526 7539051 8495409 9640098 10438686 10862982 11316499 11762874 14460147 15078102 15658029 16294473 16990818 17644311 22617153 22632998 25486227 28920294 31316058 32588946 32669221 33949497 35288622 36813439 43380441 45234306 48883419 50972454 65338442 67851459 67898994 73626878 76458681 86760882 97766838 98007663 101848491 110440317 135702918 147114487 152917362 196015326 203554377 203696982 220880634 229376043 294022989 294228974 305545473 331320951 407108754 441343461 458752086 588045978 611090946 662641902 690306439 882068967 882686922 916636419 993962853 1324030383 1380612878 1764137934 1833272838 1912488331 1987925706 2070919317 2646206901 2648060766 2981888559 3824976662 3972091149 4141838634 5292413802 5737464993 5963777118 6212757951 7944182298 8973983707 11474929986 11916273447 12425515902 17212394979 17947967414 18638273853 23832546894 26921951121 34424789958 37276547706 51637184937 53843902242 55914821559 80765853363 103274369874 111829643118 116661788191 154911554811 161531706726 233323576382 242297560089 309823109622 349985364573 484595120178 699970729146 726892680267 1049956093719 1453785360534 2099912187438 3149868281157 6299736562314 9449604843471 18899209686942
• Sum of all divisors σ(n): 46635873617520
• Sum of proper divisors (its aliquot sum) s(n): 27736663930578
• 18899209686942 is an abundant number, because the sum of its proper divisors (27736663930578) is greater than itself. Its abundance is 8837454243636

Bases of 18899209686942

• Binary: 100010011000001010000101011100000111110011110₂
• Hexadecimal: 0x113050AE0F9E
• Base-36: 6P66DHFVI

Squares and roots of 18899209686942

• 18899209686942 squared (18899209686942²) is 357180126791002329645311364
• 18899209686942 cubed (18899209686942³) is 6750422112231683005518357669520555008888
• The square root of 18899209686942 is 4347322.1282695397
• The cube root of 18899209686942 is 26636.7487655543

Scales and comparisons

• 18,899,209,686,942 seconds is equal to 600,936 years, 21 weeks, 1 day, 20 hours, 35 minutes, 42 seconds.
• To count from 1 to 18,899,209,686,942 would take you about one million, five hundred two thousand, three hundred forty-one 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 18899209686942 cubic inches would be around 2219.7 feet tall.

Recreational maths with 18899209686942

• 18899209686942 backwards is 24968690299881
• 18899209686942 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 18899209686942's digits is 81
• More coming soon!