643228889689728

Names of 643228889689728

• Cardinal: 643228889689728 can be written as Six hundred forty-three trillion, two hundred twenty-eight billion, eight hundred eighty-nine million, six hundred eighty-nine thousand, seven hundred twenty-eight.

Scientific notation

• Scientific notation: 6.43228889689728 × 10¹⁴

Factors of 643228889689728

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 11
• Sum of prime factors: 2100475

Divisors of 643228889689728

• Number of divisors d(n): 96
• Complete list of divisors:
  1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 288 384 576 1152 312241 624482 936723 1248964 1788229 1873446 2497928 2810169 3576458 3746892 4995856 5364687 5620338 7152916 7493784 9991712 10729374 11240676 14305832 14987568 16094061 19983424 21458748 22481352 28611664 29975136 32188122 39966848 42917496 44962704 57223328 59950272 64376244 85834992 89925408 114446656 119900544 128752488 171669984 179850816 228893312 257504976 343339968 359701632 515009952 686679936 1030019904 2060039808 558358411189 1116716822378 1675075233567 2233433644756 3350150467134 4466867289512 5025225700701 6700300934268 8933734579024 10050451401402 13400601868536 17867469158048 20100902802804 26801203737072 35734938316096 40201805605608 53602407474144 71469876632192 80403611211216 107204814948288 160807222422432 214409629896576 321614444844864 643228889689728
• Sum of all divisors σ(n): 1850965096152900
• Sum of proper divisors (its aliquot sum) s(n): 1207736206463172
• 643228889689728 is an abundant number, because the sum of its proper divisors (1207736206463172) is greater than itself. Its abundance is 564507316773444

Bases of 643228889689728

• Binary: 10010010010000001101100101011110101010111010000000₂
• Hexadecimal: 0x24903657AAE80
• Base-36: 6C079T8RK0

Squares and roots of 643228889689728

• 643228889689728 squared (643228889689728²) is 413743404531480271780108713984
• 643228889689728 cubed (643228889689728³) is 266131710713232031663226205289497906854756352
• The square root of 643228889689728 is 25361957.5287422955
• The cube root of 643228889689728 is 86322.0702244647

Scales and comparisons

• 643,228,889,689,728 seconds is equal to 20,452,689 years, 2 weeks, 5 days, 20 hours, 28 minutes, 48 seconds.
• To count from 1 to 643,228,889,689,728 would take you about fifty-one million, one hundred thirty-one thousand, seven hundred twenty-two 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 643228889689728 cubic inches would be around 7193.5 feet tall.

Recreational maths with 643228889689728

• 643228889689728 backwards is 827986988822346
• The number of decimal digits it has is: 15
• The sum of 643228889689728's digits is 90
• More coming soon!