21842621679945

Names of 21842621679945

• Cardinal: 21842621679945 can be written as Twenty-one trillion, eight hundred forty-two billion, six hundred twenty-one million, six hundred seventy-nine thousand, nine hundred forty-five.

Scientific notation

• Scientific notation: 2.1842621679945 × 10¹³

Factors of 21842621679945

• Number of distinct prime factors ω(n): 8
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 718

Divisors of 21842621679945

• Number of divisors d(n): 384
• Complete list of divisors:
  1 3 5 11 15 33 37 55 61 89 111 121 165 181 183 185 267 305 331 363 407 445 543 555 605 671 905 915 979 993 1221 1335 1655 1815 1991 2013 2035 2257 2715 2937 3293 3355 3641 4477 4895 4965 5429 5973 6105 6697 6771 7381 9879 9955 10065 10769 10923 11041 11285 12247 13431 14685 16109 16287 16465 18205 20091 20191 21901 22143 22385 24827 27145 29459 29865 32307 33123 33485 33855 36223 36741 36905 40051 48327 49395 53845 54615 55205 59719 59911 60573 61235 65703 67155 73667 74481 80545 81435 88377 100455 100955 108669 109505 110715 120153 121451 124135 134717 147295 161535 165615 177199 179157 179733 181115 183705 200255 200873 221001 222101 241635 273097 298595 299555 302865 324049 328515 364353 368335 372405 398453 404151 408517 441885 531597 543345 596033 600765 602619 607255 656909 659021 666303 673585 747067 810337 819291 885995 895785 898665 972147 982649 1004365 1089983 1105005 1110505 1195359 1225551 1335961 1365485 1481887 1620245 1788099 1796999 1821765 1949189 1970727 1977063 1992265 2020755 2042585 2209603 2216707 2241201 2431011 2443111 2657985 2947947 2980165 3013095 3269949 3284545 3295105 3331515 3564539 3654571 3735335 4007883 4051685 4096455 4445661 4493687 4860735 4913245 5332079 5390997 5449915 5847567 5976795 6127755 6556363 6628809 6650121 6679805 7249231 7329333 7409435 8217737 8940495 8984995 9745945 9853635 9885315 10693617 10809139 10963713 11048015 11083535 11206005 11989813 12155055 12215555 13481061 14739735 15996237 16349745 17822695 18272855 19669089 19766989 20039415 21747693 22228305 22468435 24305633 24383777 24653211 26660395 26954985 29237835 32427417 32781815 33144045 33250605 35969439 36246155 36358013 36646665 40200281 41088685 49430557 53468085 54045695 54818565 58652869 59300967 59949065 66488963 67405305 72119993 72916899 73151331 79981185 90395107 98345445 98834945 108738465 109074039 118900529 120600843 121528165 121918885 123266055 131887943 135219127 148291671 162137085 175958607 179847195 181790065 197286923 199466889 201001405 216359979 217436879 247152785 268221547 271185321 293264345 296504835 325256819 332444815 356701587 360599965 364584495 365756655 395663829 399938143 405657381 442203091 451975535 545370195 591860769 594502645 603004215 645181559 652310637 659439715 676095635 731378593 741458355 804664641 879793035 975770457 986434615 997334445 1081799895 1087184395 1199814429 1326609273 1341107735 1355926605 1487410397 1626284095 1783507935 1935544677 1978319145 1999690715 2028286905 2170156153 2194135779 2211015455 2959303845 3225907795 3261553185 3577825009 3656892965 4023323205 4399319573 4462231191 4878852285 5999072145 6510468459 6633046365 7437051985 8045164523 9677723385 10733475027 10850780765 10970678895 12034502303 13197958719 16361514367 17889125045 21996597865 22311155955 23871717683 24135493569 32552342295 36103506909 39356075099 40225822615 49084543101 53667375135 60172511515 65989793595 71615153049 81807571835 118068225297 119358588415 120677467845 132379525333 180517534545 196780375495 245422715505 358075765245 397138575999 590341126485 661897626665 1456174778663 1985692879995 4368524335989 7280873893315 21842621679945
• Sum of all divisors σ(n): 40896877432320
• Sum of proper divisors (its aliquot sum) s(n): 19054255752375
• 21842621679945 is a deficient number, because the sum of its proper divisors (19054255752375) is less than itself. Its deficiency is 2788365927570

Bases of 21842621679945

• Binary: 100111101110110100001101101001100100101001001₂
• Hexadecimal: 0x13DDA1B4C949
• Base-36: 7QQD0ZL1L

Squares and roots of 21842621679945

• 21842621679945 squared (21842621679945²) is 477100121853203334015203025
• 21842621679945 cubed (21842621679945³) is 10421117465095180414306828860095745833625
• The square root of 21842621679945 is 4673609.0636621501
• The cube root of 21842621679945 is 27953.4181599167

Scales and comparisons

• 21,842,621,679,945 seconds is equal to 694,527 years, 41 weeks, 6 days, 7 hours, 5 minutes, 45 seconds.
• To count from 1 to 21,842,621,679,945 would take you about one million, seven hundred thirty-six thousand, three 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 21842621679945 cubic inches would be around 2329.5 feet tall.

Recreational maths with 21842621679945

• 21842621679945 backwards is 54997612624812
• The number of decimal digits it has is: 14
• The sum of 21842621679945's digits is 66
• More coming soon!