21168994638528

Names of 21168994638528

• Cardinal: 21168994638528 can be written as Twenty-one trillion, one hundred sixty-eight billion, nine hundred ninety-four million, six hundred thirty-eight thousand, five hundred twenty-eight.

Scientific notation

• Scientific notation: 2.1168994638528 × 10¹³

Factors of 21168994638528

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 13
• Sum of prime factors: 35297

Divisors of 21168994638528

• Number of divisors d(n): 448
• Complete list of divisors:
  1 2 3 4 6 8 9 11 12 16 18 22 24 27 32 33 36 43 44 48 54 64 66 72 86 88 96 99 108 129 132 144 172 176 192 198 216 258 264 288 297 344 352 387 396 432 473 516 528 576 594 688 704 751 774 792 864 946 1032 1056 1161 1188 1376 1419 1502 1548 1584 1728 1892 2064 2112 2253 2322 2376 2752 2838 3004 3096 3168 3784 4128 4257 4506 4644 4752 5676 6008 6192 6336 6759 7568 8256 8261 8514 9012 9288 9504 11352 12016 12384 12771 13518 15136 16522 17028 18024 18576 19008 20277 22704 24032 24768 24783 25542 27036 30272 32293 33044 34056 34487 36048 37152 40554 45408 48064 49566 51084 54072 64586 66088 68112 68974 72096 74304 74349 81108 90816 96879 99132 102168 103461 108144 129172 132176 136224 137948 144192 148698 162216 193758 198264 204336 206922 216288 223047 258344 264352 272448 275896 290637 297396 310383 324432 355223 379357 387516 396528 408672 413844 432576 446094 516688 528704 551792 581274 594792 620766 648864 710446 758714 775032 793056 817344 827688 871911 892188 931149 1033376 1065669 1103584 1138071 1162548 1189584 1241532 1297728 1420892 1482941 1517428 1550064 1586112 1655376 1743822 1784376 1862298 2066752 2131338 2207168 2276142 2325096 2379168 2483064 2841784 2965882 3034856 3100128 3197007 3310752 3414213 3487644 3568752 3724596 4262676 4448823 4552284 4650192 4758336 4966128 5683568 5931764 6069712 6200256 6394014 6621504 6828426 6975288 7137504 7449192 8525352 8897646 9104568 9300384 9591021 9932256 10242639 11367136 11863528 12139424 12788028 13346469 13656852 13950576 14275008 14898384 16312351 17050704 17795292 18209136 18600768 19182042 19864512 20485278 22734272 23727056 24278848 25576056 25899737 26692938 27313704 27901152 29796768 32624702 34101408 35590584 36418272 38364084 40039407 40970556 47454112 48937053 51152112 51799474 53385876 54627408 55802304 59593536 65249404 68202816 71181168 72836544 76728168 77699211 80078814 81941112 94908224 97874106 102304224 103598948 106771752 109254816 130498808 142362336 146811159 153456336 155398422 160157628 163882224 195748212 204608448 207197896 213543504 218509632 233097633 260997616 284724672 284897107 293622318 306912672 310796844 320315256 327764448 391496424 414395792 427087008 440433477 466195266 521995232 569794214 587244636 613825344 621593688 640630512 655528896 699292899 782992848 828791584 854174016 854691321 880866954 932390532 1043990464 1113688691 1139588428 1174489272 1243187376 1281261024 1398585798 1565985696 1657583168 1709382642 1761733908 1864781064 2227377382 2279176856 2348978544 2486374752 2562522048 2564073963 2797171596 3131971392 3341066073 3418765284 3523467816 3729562128 4454754764 4558353712 4697957088 4972749504 5128147926 5594343192 6682132146 6837530568 7046935632 7459124256 7692221889 8909509528 9116707424 9395914176 10023198219 10256295852 11188686384 12250575601 13364264292 13675061136 14093871264 14918248512 15384443778 17819019056 18233414848 20046396438 20512591704 22377372768 24501151202 26728528584 27350122272 28187742528 30069594657 30768887556 35638038112 36751726803 40092792876 41025183408 44754745536 49002302404 53457057168 54700244544 60139189314 61537775112 71276076224 73503453606 80185585752 82050366816 98004604808 106914114336 110255180409 120278378628 123075550224 147006907212 160371171504 164100733632 196009209616 213828228672 220510360818 240556757256 246151100448 294013814424 320742343008 330765541227 392018419232 441020721636 481113514512 492302200896 588027628848 641484686016 661531082454 784036838464 882041443272 962227029024 1176055257696 1323062164908 1764082886544 1924454058048 2352110515392 2646124329816 3528165773088 5292248659632 7056331546176 10584497319264 21168994638528
• Sum of all divisors σ(n): 69563830026240
• Sum of proper divisors (its aliquot sum) s(n): 48394835387712
• 21168994638528 is an abundant number, because the sum of its proper divisors (48394835387712) is greater than itself. Its abundance is 27225840749184

Bases of 21168994638528

• Binary: 100110100000011001010011001111101101011000000₂
• Hexadecimal: 0x1340CA67DAC0
• Base-36: 7I4WGU9C0

Squares and roots of 21168994638528

• 21168994638528 squared (21168994638528²) is 448126334006027209382006784
• 21168994638528 cubed (21168994638528³) is 9486383961956797759444987270729323773952
• The square root of 21168994638528 is 4600977.5742257211
• The cube root of 21168994638528 is 27663.0510144203

Scales and comparisons

• 21,168,994,638,528 seconds is equal to 673,108 years, 28 weeks, 4 days, 28 minutes, 48 seconds.
• To count from 1 to 21,168,994,638,528 would take you about one million, six hundred eighty-two thousand, seven hundred seventy-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 21168994638528 cubic inches would be around 2305.3 feet tall.

Recreational maths with 21168994638528

• 21168994638528 backwards is 82583649986112
• 21168994638528 is a Harshad number.
• The number of decimal digits it has is: 14
• The sum of 21168994638528's digits is 72
• More coming soon!