643826973768426

Names of 643826973768426

• Cardinal: 643826973768426 can be written as Six hundred forty-three trillion, eight hundred twenty-six billion, nine hundred seventy-three million, seven hundred sixty-eight thousand, four hundred twenty-six.

Scientific notation

• Scientific notation: 6.43826973768426 × 10¹⁴

Factors of 643826973768426

• Number of distinct prime factors ω(n): 7
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 136024

Divisors of 643826973768426

• Number of divisors d(n): 288
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 31 42 49 62 63 93 98 109 126 147 186 217 218 279 294 327 434 441 558 651 654 763 882 981 1302 1519 1526 1609 1953 1962 2289 3038 3218 3379 3906 4557 4578 4827 5341 6758 6867 9114 9654 10137 10682 11263 13671 13734 14481 16023 20274 22526 23653 27342 28962 30411 32046 33789 47306 48069 49879 60822 67578 70959 78841 96138 99758 101367 134263 141918 149637 157682 165571 175381 202734 212877 236523 268526 299274 331142 349153 350762 402789 425754 448911 473046 496713 526143 698306 709569 805578 897822 939841 993426 1047459 1052286 1208367 1227667 1419138 1490139 1578429 1879682 2094918 2416734 2444071 2455334 2819523 2980278 3142377 3156858 3683001 4162153 4888142 5436811 5639046 6284754 6578887 7332213 7366002 8324306 8458569 8593669 10873622 11049003 12486459 13157774 14634667 14664426 16310433 16917138 17187338 19736661 21996639 22098006 24972918 25781007 29135071 29269334 32620866 37459377 38057677 39473322 43904001 43993278 48931299 51562014 58270142 59209983 74918754 76115354 77343021 87405213 87808002 97862598 102442669 114173031 118419966 131712003 154686042 174810426 203945497 204885338 216029167 228346062 262215639 263424006 266403739 307328007 342519093 407890994 432058334 453674677 524431278 532807478 611836491 614656014 648087501 685038186 717098683 799211217 907349354 921984021 1223672982 1296175002 1361024031 1434197366 1512204169 1598422434 1835509473 1843968042 1944262503 2151296049 2397633651 2722048062 3024408338 3175722739 3671018946 3888525006 4083072093 4302592098 4536612507 4795267302 6351445478 6453888147 6696904177 8166144186 9073225014 9527168217 10585429183 12907776294 13393808354 13609837521 19054336434 20090712531 21170858366 22230059173 23547179203 27219675042 28581504651 31756287549 40181425062 44460118346 46878329239 47094358406 57163009302 60272137593 63512575098 66690177519 70641537609 93756658478 95268862647 120544275186 133380355038 140634987717 141283075218 164830254421 190537725294 200070532557 211924612827 281269975434 328148304673 329660508842 400141065114 421904963151 423849225654 494490763263 656296609346 729962555293 843809926302 984444914019 988981526526 1153811780947 1459925110586 1483472289789 1968889828038 2189887665879 2307623561894 2953334742057 2966944579578 3461435342841 4379775331758 5109737887051 5906669484114 6569662997637 6922870685682 10219475774102 10384306028523 13139325995274 15329213661153 20768612057046 30658427322306 35768165209357 45987640983459 71536330418714 91975281966918 107304495628071 214608991256142 321913486884213 643826973768426
• Sum of all divisors σ(n): 1691482791398400
• Sum of proper divisors (its aliquot sum) s(n): 1047655817629974
• 643826973768426 is an abundant number, because the sum of its proper divisors (1047655817629974) is greater than itself. Its abundance is 403828843861548

Bases of 643826973768426

• Binary: 10010010011000111010100110000100010111101011101010₂
• Hexadecimal: 0x2498EA6117AEA
• Base-36: 6C7U11286I

Squares and roots of 643826973768426

• 643826973768426 squared (643826973768426²) is 414513172151809500699474517476
• 643826973768426 cubed (643826973768426³) is 266874761213650106131910428661703085714012776
• The square root of 643826973768426 is 25373745.7575428937
• The cube root of 643826973768426 is 86348.8164643971

Scales and comparisons

• 643,826,973,768,426 seconds is equal to 20,471,706 years, 14 weeks, 3 days, 6 hours, 47 minutes, 6 seconds.
• To count from 1 to 643,826,973,768,426 would take you about fifty-one million, one hundred seventy-nine thousand, two hundred sixty-five 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 643826973768426 cubic inches would be around 7195.7 feet tall.

Recreational maths with 643826973768426

• 643826973768426 backwards is 624867379628346
• The number of decimal digits it has is: 15
• The sum of 643826973768426's digits is 81
• More coming soon!