20820489781279986

Names of 20820489781279986

• Cardinal: 20820489781279986 can be written as Twenty quadrillion, eight hundred twenty trillion, four hundred eighty-nine billion, seven hundred eighty-one million, two hundred seventy-nine thousand, nine hundred eighty-six.

Scientific notation

• Scientific notation: 2.0820489781279986 × 10¹⁶

Factors of 20820489781279986

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 788

Divisors of 20820489781279986

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 42 54 63 81 126 162 163 189 243 326 378 486 489 567 613 978 1134 1141 1226 1467 1701 1839 2282 2934 3402 3423 3678 4291 4401 5517 6846 8582 8802 10269 11034 12873 13203 16551 20538 25746 26406 26569 30807 33102 38619 39609 49653 53138 61614 77238 79218 79707 92421 99306 99919 115857 148959 159414 184842 185983 199838 231714 239121 277263 297918 299757 347571 371966 375769 478242 554526 557949 599514 695142 699433 717363 751538 899271 1042713 1115898 1127307 1398866 1434726 1673847 1798542 2085426 2098299 2152089 2254614 2630383 2697813 3347694 3381921 4196598 4304178 5021541 5260766 5395626 6294897 6456267 6763842 7891149 8093439 10043082 10145763 12589794 12912534 15064623 15782298 16186878 16286797 18884691 20291526 23673447 24280317 30129246 30437289 32573594 37769382 45193869 47346894 48560634 48860391 56654073 60874578 61250347 71020341 90387738 91311867 97720782 113308146 114007579 122500694 142040682 146581173 169962219 182623734 183751041 213061023 228015158 230346397 293162346 339924438 342022737 367502082 426122046 428752429 439743519 460692794 551253123 639183069 684045474 691039191 857504858 879487038 1026068211 1102506246 1278366138 1286257287 1319230557 1382078382 1612424779 1653759369 2052136422 2073117573 2572514574 2638461114 3078204633 3224849558 3307518738 3858771861 3957691671 4146235146 4837274337 4961278107 6156409266 6219352719 7717543722 7915383342 9234613899 9674548674 9922556214 9983806561 11576315583 12438705438 14511823011 14883834321 18469227798 18658058157 19967613122 23152631166 27703841697 29023646022 29767668642 29951419683 34728946749 37316116314 37546462711 43535469033 55407683394 55974174471 59902839366 69457893498 69886645927 75092925422 87070938066 89854259049 104186840247 111948348942 112639388133 130606407099 139773291854 179708518098 208373680494 209659937781 225278776266 261212814198 262825238977 269562777147 337918164399 391819221297 419319875562 525650477954 539125554294 628979813343 675836328798 783638442594 788475716931 808688331441 1013754493197 1257959626686 1576951433862 1617376662882 1886939440029 2027508986394 2365427150793 2426064994323 3041263479591 3773878880058 4730854301586 4852129988646 5660818320087 6082526959182 6120073421893 7096281452379 9123790438773 11321636640174 12240146843786 14192562904758 16982454960261 18247580877546 18360220265679 21288844357137 33964909920522 36720440531358 42577688714274 42840513953251 55080660797037 63866533071411 85681027906502 110161321594074 127733066142822 128521541859753 165241982391111 257043083719506 330483964782222 385564625579259 495725947173333 771129251158518 991451894346666 1156693876737777 1487177841519999 2313387753475554 2974355683039998 3470081630213331 6940163260426662 10410244890639993 20820489781279986
• Sum of all divisors σ(n): 53882879911136640
• Sum of proper divisors (its aliquot sum) s(n): 33062390129856654
• 20820489781279986 is an abundant number, because the sum of its proper divisors (33062390129856654) is greater than itself. Its abundance is 12241900348576668

Bases of 20820489781279986

• Binary: 1001001111110000010000000001001011101100111110011110010₂
• Hexadecimal: 0x49F82009767CF2
• Base-36: 5P08WYMNP4I

Squares and roots of 20820489781279986

• 20820489781279986 squared (20820489781279986²) is 433492794732384319264724524160196
• 20820489781279986 cubed (20820489781279986³) is 9025532302984110262641779745071101585578592637256
• The square root of 20820489781279986 is 144293069.0687532157
• The cube root of 20820489781279986 is 275104.0478181645

Scales and comparisons

• 20,820,489,781,279,986 seconds is equal to 662,027,173 years, 2 weeks, 1 day, 53 minutes, 6 seconds.
• To count from 1 to 20,820,489,781,279,986 would take you about one billion, nine hundred eighty-six million, eighty-one thousand, five hundred nineteen 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 20820489781279986 cubic inches would be around 22925.3 feet tall.

Recreational maths with 20820489781279986

• 20820489781279986 backwards is 68997218798402802
• The number of decimal digits it has is: 17
• The sum of 20820489781279986's digits is 90
• More coming soon!