640332843264

Names of 640332843264

• Cardinal: 640332843264 can be written as Six hundred forty billion, three hundred thirty-two million, eight hundred forty-three thousand, two hundred sixty-four.

Scientific notation

• Scientific notation: 6.40332843264 × 10¹¹

Factors of 640332843264

• Number of distinct prime factors ω(n): 3
• Total number of prime factors Ω(n): 14
• Sum of prime factors: 5562

Divisors of 640332843264

• Number of divisors d(n): 135
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 81 96 108 128 144 162 192 216 256 288 324 384 432 576 648 768 864 1152 1296 1728 2304 2592 3456 5184 5557 6912 10368 11114 16671 20736 22228 33342 44456 50013 66684 88912 100026 133368 150039 177824 200052 266736 300078 355648 400104 450117 533472 600156 711296 800208 900234 1066944 1200312 1422592 1600416 1800468 2133888 2400624 3200832 3600936 4267776 4801248 6401664 7201872 9602496 12803328 14403744 19204992 28807488 30880249 38409984 57614976 61760498 92640747 115229952 123520996 185281494 247041992 277922241 370562988 494083984 555844482 741125976 833766723 988167968 1111688964 1482251952 1667533446 1976335936 2223377928 2501300169 2964503904 3335066892 3952671872 4446755856 5002600338 5929007808 6670133784 7905343744 8893511712 10005200676 11858015616 13340267568 17787023424 20010401352 23716031232 26680535136 35574046848 40020802704 53361070272 71148093696 80041605408 106722140544 160083210816 213444281088 320166421632 640332843264
• Sum of all divisors σ(n): 1909700332617
• Sum of proper divisors (its aliquot sum) s(n): 1269367489353
• 640332843264 is an abundant number, because the sum of its proper divisors (1269367489353) is greater than itself. Its abundance is 629034646089

Bases of 640332843264

• Binary: 1001010100010110110011111100100100000000₂
• Hexadecimal: 0x9516CFC900
• Base-36: 865XN400

Squares and roots of 640332843264

• 640332843264 squared (640332843264²) is 410026150162558390173696
• 640332843264 cubed (640332843264³) is 262553210546182829776341438503583744
• 640332843264 is a perfect square number. Its square root is 800208
• The cube root of 640332843264 is 8619.2324367915

Scales and comparisons

• 640,332,843,264 seconds is equal to 20,360 years, 31 weeks, 2 days, 18 hours, 14 minutes, 24 seconds.
• To count from 1 to 640,332,843,264 would take you about forty thousand, seven hundred twenty-one 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 640332843264 cubic inches would be around 718.3 feet tall.

Recreational maths with 640332843264

• 640332843264 backwards is 462348233046
• The number of decimal digits it has is: 12
• The sum of 640332843264's digits is 45
• More coming soon!