20820457687349178

Names of 20820457687349178

• Cardinal: 20820457687349178 can be written as Twenty quadrillion, eight hundred twenty trillion, four hundred fifty-seven billion, six hundred eighty-seven million, three hundred forty-nine thousand, one hundred seventy-eight.

Scientific notation

• Scientific notation: 2.0820457687349178 × 10¹⁶

Factors of 20820457687349178

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 414

Divisors of 20820457687349178

• Number of divisors d(n): 500
• Complete list of divisors:
  1 2 3 6 9 18 19 27 38 41 54 57 81 82 114 123 162 171 246 342 349 361 369 513 698 722 738 779 1026 1047 1083 1107 1539 1558 1681 2094 2166 2214 2337 3078 3141 3249 3321 3362 4674 5043 6282 6498 6631 6642 6859 7011 9423 9747 10086 13262 13718 14022 14309 14801 15129 18846 19494 19893 20577 21033 28269 28618 29241 29602 30258 31939 39786 41154 42066 42927 44403 45387 56538 58482 59679 61731 63099 63878 68921 85854 88806 90774 95817 119358 123462 125989 126198 128781 130321 133209 136161 137842 179037 185193 191634 206763 251978 257562 260642 266418 271871 272322 281219 287451 358074 370386 377967 386343 390963 399627 413526 537111 543742 555579 562438 574902 586669 606841 620289 755934 772686 781926 799254 815613 843657 862353 1074222 1111158 1133901 1159029 1172889 1173338 1198881 1213682 1240578 1309499 1631226 1687314 1724706 1760007 1820523 1860867 2267802 2318058 2345778 2393791 2397762 2446839 2530971 2587059 2618998 2825761 3401703 3518667 3520014 3641046 3721734 3928497 4787582 4893678 5061942 5165549 5174118 5280021 5343161 5461569 5582601 5651522 6803406 7037334 7181373 7340517 7592913 7856994 8477283 10205109 10331098 10556001 10560042 10686322 10923138 11146711 11165202 11529979 11785491 14362746 14681034 15185826 15496647 15840063 16029483 16384707 16954566 20410218 21112002 21544119 22021551 22293422 22778739 23059958 23570982 24053429 24880481 25431849 30993294 31680126 32058966 32769414 33440133 34589937 35356473 43088238 44043102 45482029 45557478 46489941 47520189 48088449 48106858 49154121 49760962 50863698 53689459 64632357 66880266 69179874 70712946 72160287 74641443 76295547 90964058 92979882 95040378 96176898 98145431 98308242 100320399 103769811 106069419 107378918 129264714 136446087 139469823 144265347 144320574 149282886 152591094 161068377 193897071 196290862 200640798 207539622 211787509 212138838 216480861 219069601 223924329 228886641 272892174 278939646 288530694 294436293 300961197 311309433 322136754 387794142 409338261 418409469 423575018 432796041 432961722 438139202 447848658 457015151 457773282 472729139 483205131 588872586 601922394 622618866 635362527 649442583 657208803 671772987 818676522 836818938 865592082 883308879 902883591 914030302 933928299 945458278 966410262 986190589 1020099721 1228014783 1270725054 1298885166 1314417606 1343545974 1371045453 1418187417 1449615393 1766617758 1805767182 1864763189 1867856598 1906087581 1948327749 1971626409 1972381178 2015318961 2040199442 2456029566 2649926637 2742090906 2836374834 2899230786 2958571767 3060299163 3684044349 3729526378 3812175162 3896655498 3943252818 4023962671 4030637922 4113136359 4254562251 4348846179 5299853274 5594289567 5718262743 5914879227 5917143534 6120598326 7368088698 7949779911 8047925342 8226272718 8509124502 8683287869 8697692358 8875715301 8981853641 9180897489 11188579134 11436525486 11829758454 12071888013 12339409077 12763686753 15899559822 16782868701 17154788229 17366575738 17744637681 17751430602 17963707282 18361794978 18737621191 19381894699 24143776026 24678818154 25527373506 26049863607 26627145903 26945560923 27542692467 33565737402 34309576458 35489275362 36215664039 37018227231 37475242382 38291060259 38763789398 50348606103 52099727214 53254291806 53891121846 55085384934 56212863573 58145684097 72431328078 74036454462 76455290749 76582120518 78149590821 79881437709 80836682769 82628077401 100697212206 108646992117 112425727146 116291368194 151045818309 152910581498 156299181642 159762875418 161673365538 164982469511 165256154802 168638590719 174437052291 217293984234 229365872247 234448772463 242510048307 302091636618 325940976351 329964939022 337277181438 348874104582 356014802629 368255999281 458731744494 468897544926 485020096614 494947408533 505915772157 523311156873 651881952702 688097616741 703346317389 712029605258 727530144921 736511998562 989894817066 1011831544314 1046622313746 1068044407887 1104767997843 1376195233482 1406692634778 1455060289842 1484842225599 1517747316471 1569933470619 2064292850223 2136088815774 2209535995686 2969684451198 3035494632942 3134666920709 3139866941238 3204133223661 3314303993529 4128585700446 4454526676797 6192878550669 6269333841418 6408266447322 6628607987058 6764281249951 8909053353594 9404000762127 9612399670983 9942911980587 12385757101338 13363580030391 13528562499902 18808001524254 19224799341966 19885823961174 20292843749853 26727160060782 28212002286381 28837199012949 29828735941761 40585687499706 56424004572762 57674398025898 59657471883522 60878531249559 84636006859143 121757062499118 128521343749069 169272013718286 182635593748677 253908020577429 257042687498138 365271187497354 385564031247207 507816041154858 547906781246031 771128062494414 1095813562492062 1156692093741621 2313384187483242 3470076281224863 6940152562449726 10410228843674589 20820457687349178
• Sum of all divisors σ(n): 50620832380445250
• Sum of proper divisors (its aliquot sum) s(n): 29800374693096072
• 20820457687349178 is an abundant number, because the sum of its proper divisors (29800374693096072) is greater than itself. Its abundance is 8979917005746894

Bases of 20820457687349178

• Binary: 1001001111110000001100010010000100000111111011110111010₂
• Hexadecimal: 0x49F8189083F7BA
• Base-36: 5P08I7URDMI

Squares and roots of 20820457687349178

• 20820457687349178 squared (20820457687349178²) is 433491458310697481517584497275684
• 20820457687349178 cubed (20820457687349178³) is 9025490565585167093824345297176892615572636787752
• The square root of 20820457687349178 is 144292957.8577872871
• The cube root of 20820457687349178 is 275103.9064642243

Scales and comparisons

• 20,820,457,687,349,178 seconds is equal to 662,026,152 years, 28 weeks, 5 days, 12 hours, 6 minutes, 18 seconds.
• To count from 1 to 20,820,457,687,349,178 would take you about one billion, nine hundred eighty-six million, seventy-eight thousand, four hundred fifty-seven 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 20820457687349178 cubic inches would be around 22925.3 feet tall.

Recreational maths with 20820457687349178

• 20820457687349178 backwards is 87194378675402802
• 20820457687349178 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 20820457687349178's digits is 81
• More coming soon!