21015148287744

Names of 21015148287744

• Cardinal: 21015148287744 can be written as Twenty-one trillion, fifteen billion, one hundred forty-eight million, two hundred eighty-seven thousand, seven hundred forty-four.

Scientific notation

• Scientific notation: 2.1015148287744 × 10¹³

Factors of 21015148287744

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 16
• Sum of prime factors: 432

Divisors of 21015148287744

• Number of divisors d(n): 648
• Complete list of divisors:
  1 2 3 4 6 8 9 12 13 16 18 24 26 27 32 36 39 41 48 52 54 64 72 78 82 96 104 108 117 123 128 144 156 164 192 208 216 234 246 256 288 312 328 351 369 373 384 416 432 468 492 533 576 624 656 702 738 746 768 832 864 936 984 1066 1107 1119 1152 1248 1312 1404 1476 1492 1599 1664 1681 1728 1872 1968 2132 2214 2238 2304 2496 2624 2808 2952 2984 3198 3328 3357 3362 3456 3744 3936 4264 4428 4476 4797 4849 4992 5043 5248 5616 5904 5968 6396 6714 6724 6912 7488 7872 8528 8856 8952 9594 9698 9984 10071 10086 10496 11232 11808 11936 12792 13428 13448 14391 14547 14976 15129 15293 15744 17056 17712 17904 19188 19396 20142 20172 21853 22464 23616 23872 25584 26856 26896 28782 29094 29952 30258 30586 31488 34112 35424 35808 38376 38792 40284 40344 43641 43706 44928 45387 45879 47232 47744 51168 53712 53792 57564 58188 60516 61172 65559 68224 70848 71616 76752 77584 80568 80688 87282 87412 89856 90774 91758 94464 95488 102336 107424 107584 115128 116376 121032 122344 130923 131118 136448 137637 139129 141696 143232 153504 155168 161136 161376 174564 174824 181548 183516 196677 198809 204672 214848 215168 230256 232752 242064 244688 261846 262236 275274 278258 283392 286464 307008 310336 322272 322752 349128 349648 363096 367032 393354 397618 409344 412911 417387 429696 430336 460512 465504 484128 489376 523692 524472 550548 556516 590031 596427 614016 620672 627013 644544 645504 698256 699296 726192 734064 786708 795236 825822 834774 859392 921024 931008 968256 978752 1047384 1048944 1101096 1113032 1180062 1192854 1228032 1241344 1252161 1254026 1289088 1291008 1396512 1398592 1452384 1468128 1573416 1590472 1651644 1669548 1789281 1808677 1842048 1862016 1881039 1936512 1957504 2094768 2097888 2202192 2226064 2360124 2385708 2504322 2508052 2578176 2793024 2797184 2904768 2936256 3146832 3180944 3303288 3339096 3578562 3617354 3684096 3724032 3756483 3762078 3873024 3915008 4189536 4195776 4404384 4452128 4720248 4771416 5008644 5016104 5367843 5426031 5586048 5594368 5643117 5704289 5809536 5872512 6293664 6361888 6606576 6678192 7157124 7234708 7512966 7524156 8151169 8379072 8391552 8808768 8904256 9440496 9542832 10017288 10032208 10735686 10852062 11172096 11286234 11408578 11619072 11745024 12587328 12723776 13213152 13356384 14314248 14469416 15025932 15048312 16278093 16302338 16758144 16783104 16929351 17112867 17617536 17808512 18880992 19085664 20034576 20064416 21471372 21704124 22572468 22817156 24453507 25174656 25447552 26426304 26712768 28628496 28938832 30051864 30096624 32556186 32604676 33516288 33858702 34225734 35235072 35617024 37761984 38171328 40069152 40128832 42942744 43408248 45144936 45634312 48834279 48907014 50349312 50895104 51338601 52852608 53425536 57256992 57877664 60103728 60193248 65112372 65209352 67717404 68451468 73360521 74155757 75523968 76342656 80138304 80257664 85885488 86816496 90289872 91268624 97668558 97814028 102677202 105705216 106851072 114513984 115755328 120207456 120386496 130224744 130418704 135434808 136902936 146721042 148311514 151047936 152685312 154015803 160276608 160515328 171770976 173632992 180579744 182537248 195337116 195628056 205354404 220081563 222467271 229027968 231510656 233875849 240414912 240772992 260449488 260837408 270869616 273805872 293442084 296623028 308031606 320553216 343541952 347265984 361159488 365074496 390674232 391256112 410708808 440163126 444934542 458055936 463021312 467751698 480829824 481545984 520898976 521674816 541739232 547611744 586884168 593246056 616063212 667401813 687083904 694531968 701627547 722318976 730148992 781348464 782512224 821417616 880326252 889869084 935503396 961659648 1041797952 1043349632 1083478464 1095223488 1173768336 1186492112 1232126424 1334803626 1374167808 1389063936 1403255094 1444637952 1460297984 1562696928 1565024448 1642835232 1760652504 1779738168 1871006792 2002205439 2083595904 2086699264 2104882641 2166956928 2190446976 2347536672 2372984224 2464252848 2669607252 2806510188 3040386037 3125393856 3130048896 3285670464 3521305008 3559476336 3742013584 4004410878 4167191808 4209765282 4333913856 4380893952 4695073344 4745968448 4928505696 5339214504 5613020376 6080772074 6250787712 6260097792 6314647923 6571340928 7042610016 7118952672 7484027168 8008821756 8419530564 9121158111 9390146688 9491936896 9857011392 10678429008 11226040752 12161544148 12501575424 12629295846 13142681856 14085220032 14237905344 14968054336 16017643512 16839061128 18242316222 18780293376 18983873792 19714022784 21356858016 22452081504 24323088296 25258591692 27363474333 28170440064 28475810688 29936108672 32035287024 33678122256 36484632444 39428045568 42713716032 44904163008 48646176592 50517183384 54726948666 56340880128 56951621376 59872217344 64070574048 67356244512 72969264888 82090422999 85427432064 89808326016 97292353184 101034366768 109453897332 128141148096 134712489024 145938529776 164180845998 170854864128 179616652032 194584706368 202068733536 218907794664 256282296192 269424978048 291877059552 328361691996 389169412736 404137467072 437815589328 512564592384 538849956096 583754119104 656723383992 778338825472 808274934144 875631178656 1167508238208 1313446767984 1616549868288 1751262357312 2335016476416 2626893535968 3502524714624 5253787071936 7005049429248 10507574143872 21015148287744
• Sum of all divisors σ(n): 68782467521040
• Sum of proper divisors (its aliquot sum) s(n): 47767319233296
• 21015148287744 is an abundant number, because the sum of its proper divisors (47767319233296) is greater than itself. Its abundance is 26752170945552

Bases of 21015148287744

• Binary: 100110001110011111000011100101101011100000000₂
• Hexadecimal: 0x131CF872D700
• Base-36: 7G684P1C0

Squares and roots of 21015148287744

• 21015148287744 squared (21015148287744²) is 441636457555869575020609536
• 21015148287744 cubed (21015148287744³) is 9281055644810558230711347443981598326784
• The square root of 21015148287744 is 4584228.2106963217
• The cube root of 21015148287744 is 27595.8739752765

Scales and comparisons

• 21,015,148,287,744 seconds is equal to 668,216 years, 36 weeks, 6 days, 23 hours, 2 minutes, 24 seconds.
• To count from 1 to 21,015,148,287,744 would take you about one million, six hundred seventy thousand, five hundred forty-one 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 21015148287744 cubic inches would be around 2299.7 feet tall.

Recreational maths with 21015148287744

• 21015148287744 backwards is 44778284151012
• 21015148287744 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21015148287744's digits is 54
• More coming soon!