642534602099318721

Names of 642534602099318721

• Cardinal: 642534602099318721 can be written as Six hundred forty-two quadrillion, five hundred thirty-four trillion, six hundred two billion, ninety-nine million, three hundred eighteen thousand, seven hundred twenty-one.

Scientific notation

• Scientific notation: 6.42534602099318721 × 10¹⁷

Factors of 642534602099318721

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 7654

Divisors of 642534602099318721

• Number of divisors d(n): 243
• Complete list of divisors:
  1 3 9 13 27 39 81 101 117 169 243 303 351 507 729 909 1053 1313 1521 2187 2727 3159 3939 4563 6561 7537 8181 9477 10201 11817 13689 17069 22611 24543 28431 30603 35451 41067 51207 67833 73629 85293 91809 97981 106353 123201 132613 153621 203499 220887 275427 293943 319059 369603 397839 460863 610497 662661 761237 826281 881829 957177 1108809 1193517 1273753 1382589 1723969 1831491 2283711 2478843 2645487 2871531 3580551 3821259 4147767 5171907 5494473 6851133 7436529 7936461 8614593 9896081 10741653 11463777 12443301 15515721 16483419 20553399 22309587 23809383 29688243 32224959 34391331 37329903 46547163 49450257 56806369 61660197 66928761 71428149 76884937 89064729 96674877 103173993 111989709 128649053 139641489 170419107 184980591 214284447 230654811 267194187 290024631 309521979 385947159 418924467 511257321 554941773 642853341 691964433 738482797 801582561 870073893 928565937 999504181 1157841477 1256773401 1533771963 1664825319 2075893299 2215448391 2404747683 2785697811 2998512543 3473524431 3770320203 4601315889 4994475957 5737443269 6227679897 6646345173 7214243049 8357093433 8995537629 9600276361 10420573293 11310960609 12993554353 13803947667 17212329807 18683039691 19939035519 21642729147 26986612887 28800829083 31261719879 38980663059 41411843001 51636989421 56049119073 59817106557 64928187441 74586762497 80959838661 86402487249 93785159637 116941989177 124235529003 154910968263 168147357219 179451319671 223760287491 242879515983 259207461747 281355478911 350825967531 372706587009 464732904789 504442071657 538353959013 579481770169 671280862473 728638547949 777622385241 844066436733 969627912461 1052477902593 1394198714367 1615061877039 1738445310507 2013842587419 2185915643847 2332867155723 2908883737383 3157433707779 4182596143101 4845185631117 5215335931521 6041527762257 6557746931541 6998601467169 7533263012197 8726651212149 9472301123337 12547788429303 15646007794563 18124583286771 20995804401507 22599789036591 26179953636447 28416903370011 37643365287909 46938023383689 54373749860313 62987413204521 67799367109773 78539860909341 85250710110033 97932419158561 140814070151067 163121249580939 203398101329319 235619582728023 293797257475683 422442210453201 489363748742817 610194303987957 706858748184069 881391772427049 1267326631359603 1830582911963871 2120576244552207 2644175317281147 3801979894078809 5491748735891613 6361728733656621 7932525951843441 16475246207674839 23797577855530323 49425738623024517 71392733566590969 214178200699772907 642534602099318721
• Sum of all divisors σ(n): 1054165205254290363
• Sum of proper divisors (its aliquot sum) s(n): 411630603154971642
• 642534602099318721 is a deficient number, because the sum of its proper divisors (411630603154971642) is less than itself. Its deficiency is 230903998944347079

Bases of 642534602099318721

• Binary: 100011101010101111011101000011111010000001101101111111000001₂
• Hexadecimal: 0x8EABDD0FA06DFC1
• Base-36: 4VQNI98Y4N29

Squares and roots of 642534602099318721

• 642534602099318721 squared (642534602099318721²) is 412850714894929833747632292341075841
• 642534602099318721 cubed (642534602099318721³) is 265270869821433017512261163874278289802364030292119361
• 642534602099318721 is a perfect square number. Its square root is 801582561
• The cube root of 642534602099318721 is 862910.0097406875

Scales and comparisons

• 642,534,602,099,318,721 seconds is equal to 20,430,612,856 years, 38 weeks, 3 days, 5 hours, 25 minutes, 21 seconds.
• To count from 1 to 642,534,602,099,318,721 would take you about sixty-one billion, two hundred ninety-one million, eight hundred thirty-eight thousand, five hundred seventy 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 642534602099318721 cubic inches would be around 71909.2 feet tall.

Recreational maths with 642534602099318721

• 642534602099318721 backwards is 127813990206435246
• The number of decimal digits it has is: 18
• The sum of 642534602099318721's digits is 72
• More coming soon!