21075641937430731

Names of 21075641937430731

• Cardinal: 21075641937430731 can be written as Twenty-one quadrillion, seventy-five trillion, six hundred forty-one billion, nine hundred thirty-seven million, four hundred thirty thousand, seven hundred thirty-one.

Scientific notation

• Scientific notation: 2.1075641937430731 × 10¹⁶

Factors of 21075641937430731

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3383

Divisors of 21075641937430731

• Number of divisors d(n): 270
• Complete list of divisors:
  1 3 7 9 21 27 49 63 81 103 147 189 309 419 441 567 721 927 1257 1323 2163 2781 2851 2933 3771 3969 5047 6489 8343 8553 8799 10609 11313 15141 19467 19957 20531 25659 26397 31827 33939 43157 45423 58401 59871 61593 74263 76977 79191 95481 129471 136269 139699 175561 179613 184779 222789 230931 237573 286443 293653 302099 388413 408807 419097 519841 526683 538839 554337 668367 859329 880959 906297 1165239 1194569 1228927 1257291 1559523 1580049 1616517 1663011 2005101 2055571 2114693 2642877 2718891 3495717 3583707 3686781 3771873 4445171 4678569 4740147 6015303 6166713 6344079 7928631 8156673 8361983 8602489 10751121 11060343 11315619 13335513 14035707 14220441 14388997 18082783 18500139 19032237 23785893 24470019 25085949 25807467 30246259 31116197 32253363 33181029 40006539 42107121 43166991 54248349 55500417 57096711 58533881 75257847 77422401 90738777 93348591 96760089 99543087 120019617 123040607 126579481 129500973 162745047 166501251 171290133 175601643 211723813 217813379 225773541 232267203 272216331 280045773 360058851 369121821 379738443 388502919 488235141 500524411 526804929 635171439 653440137 677320623 696801609 816648993 840137319 861284249 886056367 1107365463 1139215329 1165508757 1464705423 1482066691 1501573233 1580414787 1862526649 1905514317 1960320411 2449946979 2520411957 2583852747 2658169101 3322096389 3417645987 3503670877 4446200073 4504719699 4741244361 5587579947 5716542951 5880961233 6028989743 7751558241 7974507303 9966289167 10252937961 10511012631 12673182521 13037686543 13338600219 13514159097 16762739841 17149628853 17642883699 18086969229 23254674723 23923521909 24525696139 31533037893 38019547563 39113059629 40015800657 40542477291 50288219523 51554014333 54260907687 69764024169 71770565727 73577088417 88712277647 91263805801 94599113679 114058642689 117339178887 120047401971 150864658569 154662042999 162782723061 220731265251 266136832941 273791417403 283797341037 342175928067 352017536661 360878100331 463986128997 488348169183 620985943529 662193795753 798410498823 821374252209 1026527784201 1056052609983 1082634300993 1391958386991 1862957830587 1986581387259 2395231496469 2464122756627 2526146702317 3247902902979 4175875160973 5310063476299 5588873491761 7185694489407 7392368269881 7578440106951 9743708708937 15930190428897 16766620475283 22735320320853 29231126126811 37170444334093 47790571286691 50299861425849 68205960962559 111511333002279 143371713860073 204617882887677 260193110338651 334533999006837 430115141580219 780579331015953 1003601997020511 2341737993047859 3010805991061533 7025213979143577 21075641937430731
• Sum of all divisors σ(n): 37084005199916532
• Sum of proper divisors (its aliquot sum) s(n): 16008363262485801
• 21075641937430731 is a deficient number, because the sum of its proper divisors (16008363262485801) is less than itself. Its deficiency is 5067278674944930

Bases of 21075641937430731

• Binary: 1001010111000000010111101000111000110000000100011001011₂
• Hexadecimal: 0x4AE02F471808CB
• Base-36: 5RIOW8SLHOR

Squares and roots of 21075641937430731

• 21075641937430731 squared (21075641937430731²) is 444182683074788976623517423194361
• 21075641937430731 cubed (21075641937430731³) is 9361435183291525914415403395415275476727187307891
• The square root of 21075641937430731 is 145174522.3426987239
• The cube root of 21075641937430731 is 276223.2752615633

Scales and comparisons

• 21,075,641,937,430,731 seconds is equal to 670,140,222 years, 19 weeks, 1 day, 11 hours, 38 minutes, 51 seconds.
• To count from 1 to 21,075,641,937,430,731 would take you about two billion, ten million, four hundred twenty thousand, six hundred sixty-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 21075641937430731 cubic inches would be around 23018.6 feet tall.

Recreational maths with 21075641937430731

• 21075641937430731 backwards is 13703473914657012
• 21075641937430731 is a Harshad number.
• The number of decimal digits it has is: 17
• The sum of 21075641937430731's digits is 63
• More coming soon!