640397409162

Names of 640397409162

• Cardinal: 640397409162 can be written as Six hundred forty billion, three hundred ninety-seven million, four hundred nine thousand, one hundred sixty-two.

Scientific notation

• Scientific notation: 6.40397409162 × 10¹¹

Factors of 640397409162

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 195

Divisors of 640397409162

• Number of divisors d(n): 216
• Complete list of divisors:
  1 2 3 6 7 14 19 21 38 42 57 67 97 114 133 134 194 201 266 291 361 399 402 469 582 679 722 798 938 1083 1273 1358 1407 1843 2037 2166 2527 2546 2814 3686 3819 4074 4489 5054 5529 6499 7581 7638 8911 8978 9409 11058 12901 12998 13467 15162 17822 18818 19497 24187 25802 26733 26934 28227 31423 35017 38703 38994 45493 48374 53466 56454 62846 65863 70034 72561 77406 85291 90986 94269 105051 123481 131726 136479 145122 169309 170582 178771 188538 197589 210102 245119 246962 255873 272958 338618 357542 370443 395178 435433 490238 507927 511746 536313 597037 630403 735357 740886 864367 870866 1015854 1072626 1194074 1251397 1260806 1306299 1470714 1620529 1728734 1791111 1891209 2346139 2502794 2593101 2612598 3048031 3241058 3396649 3582222 3754191 3782418 4412821 4692278 4861587 5186202 6096062 6793298 7038417 7508382 8273227 8825642 9144093 9723174 10189947 11343703 11977657 13238463 14076834 16422973 16546454 18288186 20379894 22687406 23776543 23955314 24819681 26476926 32845946 34031109 35932971 42237001 47553086 49268919 49639362 57912589 68062218 71329629 71865942 83843599 84474002 98537838 115825178 126711003 142659258 157191313 167687198 173737767 227575483 251530797 253422006 295659007 314382626 347475534 455150966 471573939 503061594 591318014 682726449 802503019 886977021 943147878 1100339191 1365452898 1593028381 1605006038 1773954042 2200678382 2407509057 3186056762 3301017573 4779085143 4815018114 5617521133 6602035146 9558170286 11235042266 15247557361 16852563399 30495114722 33705126798 45742672083 91485344166 106732901527 213465803054 320198704581 640397409162
• Sum of all divisors σ(n): 1584596641824
• Sum of proper divisors (its aliquot sum) s(n): 944199232662
• 640397409162 is an abundant number, because the sum of its proper divisors (944199232662) is greater than itself. Its abundance is 303801823500

Bases of 640397409162

• Binary: 1001010100011010101010001111101110001010₂
• Hexadecimal: 0x951AA8FB8A
• Base-36: 86702ZD6

Squares and roots of 640397409162

• 640397409162 squared (640397409162²) is 410108841661402041542244
• 640397409162 cubed (640397409162³) is 262632639674390755060110552375639528
• The square root of 640397409162 is 800248.3421801009
• The cube root of 640397409162 is 8619.5221245607

Scales and comparisons

• 640,397,409,162 seconds is equal to 20,362 years, 34 weeks, 1 day, 1 hour, 12 minutes, 42 seconds.
• To count from 1 to 640,397,409,162 would take you about forty thousand, seven hundred twenty-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 640397409162 cubic inches would be around 718.3 feet tall.

Recreational maths with 640397409162

• 640397409162 backwards is 261904793046
• The number of decimal digits it has is: 12
• The sum of 640397409162's digits is 51
• More coming soon!