644121660138327

Names of 644121660138327

• Cardinal: 644121660138327 can be written as Six hundred forty-four trillion, one hundred twenty-one billion, six hundred sixty million, one hundred thirty-eight thousand, three hundred twenty-seven.

Scientific notation

• Scientific notation: 6.44121660138327 × 10¹⁴

Factors of 644121660138327

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 3594

Divisors of 644121660138327

• Number of divisors d(n): 180
• Complete list of divisors:
  1 3 7 9 21 27 43 49 63 81 129 147 189 301 343 387 441 567 903 1029 1161 1323 1849 2107 2709 3087 3483 3541 3969 5547 6321 8127 9261 10623 12943 14749 16641 18963 24381 24787 27783 31869 38829 44247 49923 56889 74361 90601 95607 116487 132741 149769 152263 170667 173509 223083 271803 286821 349461 398223 456789 520527 634207 669249 815409 1048383 1065841 1194669 1214563 1370367 1561581 1902621 2007747 2446227 3197523 3643689 4111101 4684743 5707863 6547309 7338681 7460887 9592569 10931067 12333303 12538681 14054229 17123589 19641927 22382661 28777707 32793201 37616043 45831163 51370767 52226209 58925781 67147983 86333121 87770767 98379603 112848129 137493489 156678627 176777343 201443949 263312301 320818141 338544387 412480467 470035881 530332029 539163283 604331847 614395369 789936903 962454423 1015633161 1237441401 1410107643 1617489849 1843186107 2245726987 2369810709 2887363269 3712324203 3774142981 4230322929 4300767583 4852469547 5529558321 6737180961 7109432127 8662089807 11322428943 12902302749 14557408641 16588674963 20211542883 23184021169 25986269421 26419000867 33967286829 38706908247 43672225923 49766024889 60634628649 69552063507 79257002601 101901860487 116120724741 162288148183 181903885947 184933006069 208656190521 237771007803 305705581461 348362174223 486864444549 554799018207 625968571563 713313023409 1136017037281 1460593333647 1664397054621 1877905714689 2139939070227 3408051111843 4381780000941 4993191163863 7952119260967 10224153335529 13145340002823 14979573491589 23856357782901 30672460006587 71569073348703 92017380019761 214707220046109 644121660138327
• Sum of all divisors σ(n): 1149133521927600
• Sum of proper divisors (its aliquot sum) s(n): 505011861789273
• 644121660138327 is a deficient number, because the sum of its proper divisors (505011861789273) is less than itself. Its deficiency is 139109798349054

Bases of 644121660138327

• Binary: 10010010011101001101000010101111101010001101010111₂
• Hexadecimal: 0x249D342BEA357
• Base-36: 6CBLELPUFR

Squares and roots of 644121660138327

• 644121660138327 squared (644121660138327²) is 414892713059354433744774358929
• 644121660138327 cubed (644121660138327³) is 267241383115085920711405397155396704887571783
• The square root of 644121660138327 is 25379552.0082275487
• The cube root of 644121660138327 is 86361.9887084003

Scales and comparisons

• 644,121,660,138,327 seconds is equal to 20,481,076 years, 20 weeks, 3 days, 3 hours, 45 minutes, 27 seconds.
• To count from 1 to 644,121,660,138,327 would take you about fifty-one million, two hundred two thousand, six hundred ninety 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 644121660138327 cubic inches would be around 7196.8 feet tall.

Recreational maths with 644121660138327

• 644121660138327 backwards is 723831066121446
• The number of decimal digits it has is: 15
• The sum of 644121660138327's digits is 54
• More coming soon!