128412646400

Names of 128412646400

• Cardinal: 128412646400 can be written as One hundred twenty-eight billion, four hundred twelve million, six hundred forty-six thousand, four hundred.

Scientific notation

• Scientific notation: 1.284126464 × 10¹¹

Factors of 128412646400

• Number of distinct prime factors ω(n): 4
• Total number of prime factors Ω(n): 15
• Sum of prime factors: 445

Divisors of 128412646400

• Number of divisors d(n): 198
• Complete list of divisors:
  1 2 4 5 8 10 16 20 25 32 40 50 64 80 100 127 128 160 200 254 256 311 320 400 508 512 622 635 640 800 1016 1024 1244 1270 1280 1555 1600 2032 2488 2540 2560 3110 3175 3200 4064 4976 5080 5120 6220 6350 6400 7775 8128 9952 10160 12440 12700 12800 15550 16129 16256 19904 20320 24880 25400 25600 31100 32258 32512 39497 39808 40640 49760 50800 62200 64516 65024 78994 79616 80645 81280 99520 101600 124400 129032 130048 157988 159232 161290 162560 197485 199040 203200 248800 258064 315976 318464 322580 325120 394970 398080 403225 406400 497600 516128 631952 645160 650240 789940 796160 806450 812800 987425 995200 1032256 1263904 1290320 1579880 1592320 1612900 1625600 1974850 1990400 2064512 2527808 2580640 3159760 3225800 3251200 3949700 3980800 4129024 5016119 5055616 5161280 6319520 6451600 7899400 7961600 8258048 10032238 10111232 10322560 12639040 12903200 15798800 16516096 20064476 20222464 20645120 25080595 25278080 25806400 31597600 40128952 40444928 41290240 50161190 50556160 51612800 63195200 80257904 82580480 100322380 101112320 103225600 125402975 126390400 160515808 200644760 202224640 206451200 250805950 252780800 321031616 401289520 412902400 501611900 505561600 642063232 802579040 1003223800 1011123200 1284126464 1605158080 2006447600 2568252928 3210316160 4012895200 5136505856 6420632320 8025790400 12841264640 16051580800 25682529280 32103161600 64206323200 128412646400
• Sum of all divisors σ(n): 321865580088
• Sum of proper divisors (its aliquot sum) s(n): 193452933688
• 128412646400 is an abundant number, because the sum of its proper divisors (193452933688) is greater than itself. Its abundance is 65040287288

Bases of 128412646400

• Binary: 1110111100101111111010111110000000000₂
• Hexadecimal: 0x1DE5FD7C00
• Base-36: 1MZPKO3K

Squares and roots of 128412646400

• 128412646400 squared (128412646400²) is 16489807755451432960000
• 128412646400 cubed (128412646400³) is 2117499852504762533065785344000000
• The square root of 128412646400 is 358347.1032393035
• The cube root of 128412646400 is 5045.0940349693

Scales and comparisons

• 128,412,646,400 seconds is equal to 4,083 years, 6 weeks, 3 days, 11 hours, 33 minutes, 20 seconds.
• To count from 1 to 128,412,646,400 would take you about eight thousand, one hundred sixty-six 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 128412646400 cubic inches would be around 420.4 feet tall.

Recreational maths with 128412646400

• 128412646400 backwards is 004646214821
• The number of decimal digits it has is: 12
• The sum of 128412646400's digits is 38
• More coming soon!