221101978489897664

Names of 221101978489897664

• Cardinal: 221101978489897664 can be written as Two hundred twenty-one quadrillion, one hundred one trillion, nine hundred seventy-eight billion, four hundred eighty-nine million, eight hundred ninety-seven thousand, six hundred sixty-four.

Scientific notation

• Scientific notation: 2.21101978489897664 × 10¹⁷

Factors of 221101978489897664

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 225

Divisors of 221101978489897664

• Number of divisors d(n): 420
• Complete list of divisors:
  1 2 4 8 16 23 32 43 46 64 86 92 157 172 184 314 344 368 529 628 688 736 989 1058 1256 1376 1472 1849 1978 2116 2512 2752 3611 3698 3956 4232 5024 6751 7222 7396 7912 8464 10048 12167 13502 14444 14792 15824 16928 22747 24334 27004 28888 29584 31648 33856 42527 45494 48668 54008 57776 59168 63296 79507 83053 85054 90988 97336 108016 115552 118336 155273 159014 166106 170108 181976 194672 216032 231104 279841 290293 310546 318028 332212 340216 363952 389344 432064 523181 559682 580586 621092 636056 664424 680432 727904 778688 978121 1046362 1119364 1161172 1242184 1272112 1328848 1360864 1455808 1828661 1910219 1956242 2092724 2238728 2322344 2484368 2544224 2657696 2721728 3418801 3571279 3657322 3820438 3912484 4185448 4477456 4644688 4968736 5088448 5315392 6436343 6676739 6837602 7142558 7314644 7640876 7824968 8370896 8954912 9289376 9937472 12033163 12482599 12872686 13353478 13675204 14285116 14629288 15281752 15649936 16741792 17909824 18578752 22496783 24066326 24965198 25745372 26706956 27350408 28570232 29258576 30563504 31299872 33483584 42059203 43935037 44993566 48132652 49930396 51490744 53413912 54700816 57140464 58517152 61127008 62599744 78632423 82139417 84118406 87870074 89987132 96265304 99860792 102981488 106827824 109401632 114280928 117034304 122254016 153564997 157264846 164278834 168236812 175740148 179974264 192530608 199721584 205962976 213655648 218803264 228561856 276762749 287099777 307129994 314529692 328557668 336473624 351480296 359948528 385061216 399443168 411925952 427311296 517426009 536751757 553525498 574199554 614259988 629059384 657115336 672947248 702960592 719897056 770122432 798886336 967361669 1010505851 1034852018 1073503514 1107050996 1148399108 1228519976 1258118768 1314230672 1345894496 1405921184 1439794112 1808545729 1889206591 1934723338 2021011702 2069704036 2147007028 2214101992 2296798216 2457039952 2516237536 2628461344 2691788992 2811842368 3531994931 3617091458 3778413182 3869446676 4042023404 4139408072 4294014056 4428203984 4593596432 4914079904 5032475072 5256922688 6603294871 7063989862 7234182916 7556826364 7738893352 8084046808 8278816144 8588028112 8856407968 9187192864 9828159808 11900798207 12345290411 13206589742 14127979724 14468365832 15113652728 15477786704 16168093616 16557632288 17176056224 17712815936 18374385728 22249318387 23801596414 24690580822 26413179484 28255959448 28936731664 30227305456 30955573408 32336187232 33115264576 34352112448 41596551767 43451751593 44498636774 47603192828 49381161644 52826358968 56511918896 57873463328 60454610912 61911146816 64672374464 81235883413 83193103534 86903503186 88997273548 95206385656 98762323288 105652717936 113023837792 115746926656 120909221824 151875782033 162471766826 166386207068 173807006372 177994547096 190412771312 197524646576 211305435872 226047675584 283941679453 303751564066 324943533652 332772414136 347614012744 355989094192 380825542624 395049293152 422610871744 511734322901 567883358906 607503128132 649887067304 665544828272 695228025488 711978188384 761651085248 790098586304 956720690641 1023468645802 1135766717812 1215006256264 1299774134608 1331089656544 1390456050976 1423956376768 1868425318499 1913441381282 2046937291604 2271533435624 2430012512528 2599548269216 2662179313088 2780912101952 3493142986759 3736850636998 3826882762564 4093874583208 4543066871248 4860025025056 5199096538432 6530658627419 6986285973518 7473701273996 7653765525128 8187749166416 9086133742496 9720050050112 13061317254838 13972571947036 14947402547992 15307531050256 16375498332832 18172267484992 22004575884743 26122634509676 27945143894072 29894805095984 30615062100512 32750996665664 44009151769486 52245269019352 55890287788144 59789610191968 61230124201024 80342288695457 88018303538972 104490538038704 111780575576288 119579220383936 150205148430637 160684577390914 176036607077944 208981076077408 223561151152576 300410296861274 321369154781828 352073214155888 417962152154816 600820593722548 642738309563656 704146428311776 1201641187445096 1285476619127312 1408292856623552 2403282374890192 2570953238254624 3454718413904651 4806564749780384 5141906476509248 6909436827809302 9613129499560768 13818873655618604 27637747311237208 55275494622474416 110550989244948832 221101978489897664
• Sum of all divisors σ(n): 472604796283720464
• Sum of proper divisors (its aliquot sum) s(n): 251502817793822800
• 221101978489897664 is an abundant number, because the sum of its proper divisors (251502817793822800) is greater than itself. Its abundance is 30400839303925136

Bases of 221101978489897664

• Binary: 1100010001100000110001001111110111000001101100001011000000₂
• Hexadecimal: 0x3118313F706C2C0
• Base-36: 1OH23YOSYZ7K

Squares and roots of 221101978489897664

• 221101978489897664 squared (221101978489897664²) is 48886084892147169295958505192656896
• 221101978489897664 cubed (221101978489897664³) is 10808810090278834589205883086322307115754771303890944
• The square root of 221101978489897664 is 470214821.6399581593
• The cube root of 221101978489897664 is 604687.3402026745

Scales and comparisons

• 221,101,978,489,897,664 seconds is equal to 7,030,359,002 years, 34 weeks, 9 hours, 47 minutes, 44 seconds.
• To count from 1 to 221,101,978,489,897,664 would take you about twenty-one billion, ninety-one million, seventy-seven thousand and 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 221101978489897664 cubic inches would be around 50390.6 feet tall.

Recreational maths with 221101978489897664

• 221101978489897664 backwards is 466798984879101122
• 221101978489897664 is a Harshad number.
• The number of decimal digits it has is: 18
• The sum of 221101978489897664's digits is 92
• More coming soon!