640250944641

Names of 640250944641

• Cardinal: 640250944641 can be written as Six hundred forty billion, two hundred fifty million, nine hundred forty-four thousand, six hundred forty-one.

Scientific notation

• Scientific notation: 6.40250944641 × 10¹¹

Factors of 640250944641

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 364

Divisors of 640250944641

• Number of divisors d(n): 360
• Complete list of divisors:
  1 3 7 9 11 17 19 21 33 49 51 57 63 77 99 119 121 133 147 153 171 187 209 231 307 323 357 363 399 441 539 561 627 693 833 847 921 931 969 1071 1089 1197 1309 1331 1463 1617 1683 1881 2057 2149 2261 2299 2499 2541 2763 2793 2907 3377 3553 3927 3993 4389 4851 5219 5833 5929 6171 6447 6783 6897 7497 7623 8379 9163 9317 10131 10241 10659 11781 11979 13167 14399 14641 15043 15657 15827 16093 17499 17787 18513 19341 20349 20691 22627 23639 24871 25289 27489 27951 30393 30723 31977 36533 37147 39083 40831 43197 43923 45129 46971 47481 48279 52497 53361 57409 64163 65219 67881 70917 74613 75867 82467 83853 92169 99161 100793 102487 109599 111441 112651 117249 122493 129591 131769 135387 142443 144837 158389 165473 172227 174097 177023 192489 195657 203643 212751 223839 227601 248897 255731 260029 273581 278179 285817 297483 302379 307461 328797 334323 337953 351747 367479 401863 408617 429913 449141 475167 496419 516681 522291 531069 577467 586971 631499 694127 705793 717409 746691 767193 780087 820743 834537 857451 892449 907137 922383 1013859 1090771 1108723 1205589 1225851 1239161 1289739 1347423 1425501 1489257 1566873 1593207 1742279 1820203 1894497 1915067 1947253 2082381 2117379 2152227 2240073 2301579 2340261 2462229 2503611 2572353 2813041 2860319 3009391 3143987 3272313 3326169 3616767 3677553 3717483 3869217 4042269 4420493 4494787 4729043 4858889 4940551 5226837 5460609 5683491 5745201 5841759 6247143 6352137 6456681 6946489 7635397 7763723 8439123 8580957 9028173 9431961 9816939 9978507 11152449 11998481 12195953 13261479 13484361 13630771 14187129 14576667 14821653 15680511 16381827 17235603 17525277 20022233 20839467 21065737 22906191 23291169 25317369 25742871 27084519 28295883 30943451 31463509 33103301 34583857 35995443 36587859 39784437 40453083 40892313 42561387 43730001 44464959 48625423 53447779 54346061 60066699 62518401 63197211 68718573 69873507 76411379 83989367 85400953 92830353 94390527 99309903 103751571 107986329 109763577 122676939 131983291 145876269 160343337 163038183 180200097 189591633 220244563 229234137 231723107 251968101 256202859 278491059 283171581 297929709 311254713 340377961 380422427 395949873 437628807 481030011 489114549 534879653 587925569 597806671 660733689 687702411 695169321 755904303 768608577 923883037 1021133883 1141267281 1187849619 1451816201 1604638959 1763776707 1793420013 1982201067 2085507963 2771649111 3063401649 3423801843 3744157571 4184646697 4355448603 4813916877 5291330121 5380260039 6467181259 8314947333 10162713407 11232472713 12553940091 13066345809 19401543777 30488140221 33697418139 37661820273 58204631331 71138993849 91464420663 213416981547 640250944641
• Sum of all divisors σ(n): 1323220298400
• Sum of proper divisors (its aliquot sum) s(n): 682969353759
• 640250944641 is an abundant number, because the sum of its proper divisors (682969353759) is greater than itself. Its abundance is 42718409118

Bases of 640250944641

• Binary: 1001010100010001111011100001110010000001₂
• Hexadecimal: 0x9511EE1C81
• Base-36: 864KVQM9

Squares and roots of 640250944641

• 640250944641 squared (640250944641²) is 409921272113692846618881
• 640250944641 cubed (640250944641³) is 262452481699232255798662883156366721
• The square root of 640250944641 is 800156.8250293189
• The cube root of 640250944641 is 8618.8649542793

Scales and comparisons

• 640,250,944,641 seconds is equal to 20,357 years, 51 weeks, 6 days, 20 hours, 37 minutes, 21 seconds.
• To count from 1 to 640,250,944,641 would take you about forty thousand, seven hundred fifteen 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 640250944641 cubic inches would be around 718.2 feet tall.

Recreational maths with 640250944641

• 640250944641 backwards is 146449052046
• The number of decimal digits it has is: 12
• The sum of 640250944641's digits is 45
• More coming soon!