21387318799143675

Names of 21387318799143675

• Cardinal: 21387318799143675 can be written as Twenty-one quadrillion, three hundred eighty-seven trillion, three hundred eighteen billion, seven hundred ninety-nine million, one hundred forty-three thousand, six hundred seventy-five.

Scientific notation

• Scientific notation: 2.1387318799143675 × 10¹⁶

Factors of 21387318799143675

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2070

Divisors of 21387318799143675

• Number of divisors d(n): 486
• Complete list of divisors:
  1 3 5 7 15 21 23 25 35 49 53 69 75 105 115 147 159 161 175 245 265 345 371 483 525 529 575 735 795 805 1113 1127 1219 1225 1325 1587 1725 1855 1979 2415 2597 2645 2809 3381 3657 3675 3703 3975 4025 5565 5635 5937 6095 7791 7935 8427 8533 9275 9895 11109 12075 12985 13225 13853 14045 16905 18285 18515 19663 25599 25921 27825 28037 28175 29685 30475 38955 39675 41559 42135 42665 45517 49475 55545 58989 59731 64607 64925 69265 70225 77763 84111 84525 91425 92575 96971 98315 104887 127995 129605 136551 137641 140185 148425 179193 193821 194775 196259 207795 210675 213325 227585 277725 290913 294945 298655 314661 318619 323035 346325 388815 412923 420555 452249 484855 491575 524435 588777 639975 648025 682755 688205 700925 734209 895965 955857 969105 981295 1038975 1046891 1137925 1356747 1373813 1454565 1474725 1485961 1493275 1573305 1593095 1615175 1944075 2064615 2102775 2202627 2230333 2261245 2412401 2424275 2622175 2943885 3140673 3165743 3413775 3441025 3671045 3916441 4121439 4457883 4479825 4779285 4845525 4906475 5139463 5234455 5559011 6690999 6783735 6869065 7237203 7272825 7328237 7429805 7866525 7965475 9497229 10323075 10401727 11013135 11151665 11306225 11749323 12062005 14719425 15418389 15703365 15828715 16677033 16886807 18355225 19582205 20607195 21984711 22289415 23896425 25697315 26172275 27415087 27795055 31205181 33454995 33918675 34345325 36186015 36641185 37149025 38913077 47486145 50660421 51297659 52008635 55065675 55485223 55758325 58746615 60310025 72812089 77091945 78516825 79143575 82245261 83385165 84434035 90078143 97911025 103035975 109923555 111447075 116739231 118207649 127857253 128486575 137075435 138975275 153892977 156025905 166455669 167274975 180930075 183205925 191905609 194565385 207571373 218436267 237430725 253302105 256488295 260043175 270234429 272391539 277426115 293733075 354622947 364060445 383571759 385459725 388396561 411226305 416925825 422170175 450390715 549617775 575716827 583696155 591038245 622714119 630547001 639286265 685377175 769464885 780129525 817174617 832278345 895000771 959528045 972826925 1037856865 1092181335 1165189683 1266510525 1282441475 1351172145 1361957695 1387130575 1452999611 1773114735 1820302225 1891641003 1917858795 1941982805 2056131525 2071797289 2251953575 2685002313 2718775927 2878584135 2918480775 2940716819 2955191225 3113570595 3152735005 3196431325 3847324425 4085873085 4161391725 4358998833 4413829007 4475003855 4774141579 4797640225 5189284325 5460906675 5825948415 6215391867 6265005397 6755860725 6809788475 7264998055 8156327781 8822150457 8865573675 9458205015 9589293975 9709914025 10170997277 10358986445 11001282769 13241487021 13425011565 13593879635 14322424737 14392920675 14502581023 14703584095 15567852975 15763675025 18795016191 20429365425 20585017733 21794994165 22069145035 22375019275 23870707895 29129742075 30512991831 31076959335 31325026985 33003848307 33418991053 36324990275 40781638905 43507743069 44110752285 47291025075 50854986385 51794932225 55006413845 61755053199 66207435105 67125057825 67969398175 71612123685 72512905115 73517920475 77008979383 93975080955 100256973159 101518067161 102925088665 108974970825 109805256317 110345725175 119353539475 144095124131 152564959155 155384796675 156625134925 165019241535 167094955265 203908194525 217538715345 220553761425 231026938149 233932937371 253029503687 254274931925 275032069225 304554201483 308775265995 329415768951 331037175525 358060618425 362564525575 385044896915 432285372393 469875404775 501284865795 507590335805 514625443325 539062855681 549026281585 701798812113 720475620655 759088511061 762824795775 768636794219 825096207675 835474776325 1087693576725 1155134690745 1169664686855 1265147518435 1522771007415 1543876329975 1617188567043 1647078844755 1771206525809 1925224484575 2161426861965 2305910382657 2506424328975 2537951679025 2695314278405 2745131407925 3508994060565 3602378103275 3795442555305 3843183971095 5313619577427 5380457559533 5775673453725 5819678584801 5848323434275 6325737592175 7613855037075 8085942835215 8235394223775 8856032629045 10807134309825 11529551913285 12398445680663 13476571392025 16141372678599 17459035754403 17544970302825 18977212776525 19215919855475 26568097887135 26902287797665 29098392924005 37195337041989 40429714176075 40737750093607 44280163145225 57647759566425 61992228403315 80706863392995 87295178772015 122213250280821 132840489435675 134511438988325 145491964620025 185976685209945 203688750468035 285164250655249 309961142016575 403534316964975 436475893860075 611066251404105 855492751965747 929883426049725 1018443752340175 1425821253276245 3055331257020525 4277463759828735 7129106266381225 21387318799143675
• Sum of all divisors σ(n): 43848436811635092
• Sum of proper divisors (its aliquot sum) s(n): 22461118012491417
• 21387318799143675 is an abundant number, because the sum of its proper divisors (22461118012491417) is greater than itself. Its abundance is 1073799213347742

Bases of 21387318799143675

• Binary: 1001011111110111010011100110011101110001001001011111011₂
• Hexadecimal: 0x4BFBA733B892FB
• Base-36: 5UL66M8SWE3

Squares and roots of 21387318799143675

• 21387318799143675 squared (21387318799143675²) is 457417405416204448457913292505625
• 21387318799143675 cubed (21387318799143675³) is 9782931873913513265454528695249730068045120671875
• The square root of 21387318799143675 is 146244038.5080488503
• The cube root of 21387318799143675 is 277578.2591241015

Scales and comparisons

• 21,387,318,799,143,675 seconds is equal to 680,050,582 years, 25 weeks, 4 days, 3 hours, 1 minute, 15 seconds.
• To count from 1 to 21,387,318,799,143,675 would take you about two billion, forty million, one hundred fifty-one thousand, seven hundred forty-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 21387318799143675 cubic inches would be around 23131.5 feet tall.

Recreational maths with 21387318799143675

• 21387318799143675 backwards is 57634199781378312
• The number of decimal digits it has is: 17
• The sum of 21387318799143675's digits is 84
• More coming soon!