640002428307

Names of 640002428307

• Cardinal: 640002428307 can be written as Six hundred forty billion, two million, four hundred twenty-eight thousand, three hundred seven.

Scientific notation

• Scientific notation: 6.40002428307 × 10¹¹

Factors of 640002428307

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 1058

Divisors of 640002428307

• Number of divisors d(n): 140
• Complete list of divisors:
  1 3 9 11 27 33 61 81 99 121 183 243 297 363 549 671 729 891 983 1089 1331 1647 2013 2673 2949 3267 3993 4941 6039 7381 8019 8847 9801 10813 11979 14641 14823 18117 22143 26541 29403 32439 35937 43923 44469 54351 59963 66429 79623 81191 88209 97317 107811 118943 131769 163053 179889 199287 238869 243573 291951 323433 356829 395307 489159 539667 597861 659593 716607 730719 875853 893101 970299 1070487 1185921 1308373 1619001 1793583 1978779 2192157 2627559 2679303 3211461 3557763 3925119 4857003 5380749 5936337 6576471 7255523 7882677 8037909 9634383 10673289 11775357 14392103 14571009 17809011 19729413 21766569 24113727 28903149 35326071 43176309 43713027 53427033 59188239 65299707 72341181 79810753 86709447 105978213 129528927 160281099 195899121 217023543 239432259 317934639 388586781 480843297 587697363 651070629 718296777 877918283 953803917 1165760343 1763092089 2154890331 2633754849 3497281029 5289276267 6464670993 7901264547 10491843087 19394012979 23703793641 58182038937 71111380923 213334142769 640002428307
• Sum of all divisors σ(n): 1073909487120
• Sum of proper divisors (its aliquot sum) s(n): 433907058813
• 640002428307 is a deficient number, because the sum of its proper divisors (433907058813) is less than itself. Its deficiency is 206095369494

Bases of 640002428307

• Binary: 1001010100000011000111100000110110010011₂
• Hexadecimal: 0x95031E0D93
• Base-36: 860GX66R

Squares and roots of 640002428307

• 640002428307 squared (640002428307²) is 409603108238856674886249
• 640002428307 cubed (640002428307³) is 262146983914963230100534983002650443
• The square root of 640002428307 is 800001.5176904353
• The cube root of 640002428307 is 8617.7496593405

Scales and comparisons

• 640,002,428,307 seconds is equal to 20,350 years, 5 weeks, 12 hours, 18 minutes, 27 seconds.
• To count from 1 to 640,002,428,307 would take you about forty thousand, seven hundred 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 640002428307 cubic inches would be around 718.1 feet tall.

Recreational maths with 640002428307

• 640002428307 backwards is 703824200046
• The number of decimal digits it has is: 12
• The sum of 640002428307's digits is 36
• More coming soon!